[{"content":" Meet Zendura Guard # Designed for Everyday Retention\nSMART PERFORMANCE. TRUSTED TECHNOLOGY.\nAfter active orthodontic treatment, retainer becomes the most critical appliance for the patient as it maintains the position of the teeth and prevents relapses. Built on tri-layer architecture, Zendura Guard was engineered to resist deformation and provide a softer, more flexible material response than traditional single layer thermoplastics.\nClear retainers must do more than “hold teeth.” They must:\nResist tearing, cracking, and deformation Stay clear and stain resistant Support a comfortable wear experience without sacrificing retention FLEXURAL MODULUS # Flexural modulus describes how much a retainer material resists bending under load—in other words, how stiff or flexible it is when forces are applied during insertion, removal, and chewing. For retainers, flexural modulus is important because it directly influences comfort and durability. Materials that are too stiff can be harsh, concentrate stresses and are more prone to cracking.\nIn laboratory testing under defined conditions, Zendura Guard demonstrated 45% lower stiffness (flexural modulus) than Essix A+, a comparable commercially available retainer material—suggestive of a material that is more stress-absorbing with a softer feel.*\nFlexural Modulus (MPa) # Sample Zendura Guard Essix A+ #1 1233 2370 #2 1373 2453 #3 1246 2373 #4 1389 2399 #5 1254 2595 #6 1267 2324 #7 1244 2234 #8 1379 2247 #9 1325 2459 #10 1412 2554 TEAR STRENGTH # Tear Strength measures a material’s resistance to the propagation of a crack once damage begins. For retainers, this property is critical because small defects—such as trimmed edges, notches, or stress points—can quickly turn into full fractures during daily insertion, removal, or chewing. Materials with low tear strength are more likely to crack even under normal use.\nIn laboratory testing, Zendura Guard demonstrated more than 2× the tear strength of Essix A+ under defined test conditions.*\nTear Strength (N/mm) # Sample Zendura Guard Essix A+ #1 168 67 #2 173 81 #3 124 81 #4 212 75 #5 106 70 #6 233 83 #7 195 71 #8 207 79 #9 189 79 #10 194 79 Product Information # SKU Dimensions Format Thermoformer 6447 Zendura Guard 0.89 mm x 120 mm Circle Pouch with 20 Erkodent 6547 Zendura Guard 0.89 mm x 125 mm Circle Pouch with 20 BioStar/ Mini Star/ Drufomat 6442 Zendura Guard 0.89 mm x 120 mm Circle 20 Singles Erkodent 6542 Zendura Guard 0.89 mm x 125 mm Circle 20 Singles BioStar/ Mini Star/ Drufomat BioStar \u0026amp; MiniStar are registered trademarks of Scheu.\nDrufomat is registered trademark of Dreve.\nErkopress is registered trademark of Erkodent.\nContact Information # Global HQ:\nBay Materials\n48450 Lakeview Blvd. Fremont, CA 94538\n+1 650.566.0800\ninfo@zenduradental.com\nNorth America: orders@baymaterials.com | Tel: +1 650 566 0800 Europe, Middle-East \u0026amp; Africa: orders-emea@baymaterials.com | Tel: +34 91 662 3435 LATAM: orders@baymaterials.com | Tel: +1 650 566 0800 APAC: orders@baymaterials.com | Tel: +1 650 566 0800 Footnotes \u0026amp; Trademarks # * Material-performance claims presented on this website are based on comparative mechanical bench testing of Zendura materials against comparable commercially available products. Testing was conducted under defined conditions. The underlying datasets and supporting technical documentation are maintained on file by Bay Materials and are available upon reasonable request, subject to applicable confidentiality restrictions. These claims do not relate to clinical outcomes.\nEssix is a trademark of Dentsply Sirona.\n","date":"22 April 2026","externalUrl":null,"permalink":"/products/retainer-materials/zendura-guard/","section":"Products","summary":"Meet Zendura Guard # Designed for Everyday Retention\nSMART PERFORMANCE. TRUSTED TECHNOLOGY.\nAfter active orthodontic treatment, retainer becomes the most critical appliance for the patient as it maintains the position of the teeth and prevents relapses. Built on tri-layer architecture, Zendura Guard was engineered to resist deformation and provide a softer, more flexible material response than traditional single layer thermoplastics.\n","title":"Zendura Guard — Premium Clear Retainer Material","type":"products"},{"content":" TWO TEMPLATES. ONE SMART CHOICE. # Attachment templates play a crucial role in orthodontic treatments with clear aligners1. These thin, single-use templates guide the precise placement of attachments that help aligners grip the teeth and aid in delivering accurate, predictable tooth movement.\nZendura AT and TRAK are engineered with unique performance qualities, ensuring clinicians can select the ideal solution for their specific workflow and treatment goals:\nZendura AT remains valuable for cases where rigidity and high positional accuracy are required. Zendura TRAK is the preferred choice for clinicians due to its easier integration with most workflows: Ease of Use Flexibility Moisture Resistance Clarity Composite Compatibility2 AT \u0026amp; TRAK Comparison # Feature Zendura TRAK Zendura AT Flexibility ●●●● ●● Detail Capture ●●●● ●●● Moisture Resistance ●●●● ●● Clarity ●●●● ●●● Removability Easier Harder Dimensional Accuracy ●●● ●●●● Composite Compatibility ●●●● ●●● TEMPLATE ADHESION TEST # Adhesion test is a key attribute for attachment templates. Adhesion testing shows that Zendura AT templates bond more strongly to all tested composite materials compared to TRAK*, while TRAK maintains consistently lower adhesion forces—an advantage for clear aligner workflows.\nLower adhesion means TRAK templates release more easily after attachment bonding, potentially reducing the risk of accidentally removing or disturbing newly placed attachments, while AT’s higher adhesion can create stronger retention but may require more careful removal.\nBased on adhesion data, TRAK is more user friendly while still maintaining adequate accuracy of attachments.\nAttachment Removal Force (N) Across Composites* # Composite Resin Zendura TRAK (N) Zendura AT (N) G-aenial 5.50 15.00 Transbond 8.25 20.18 EvoFlow 19.84 27.66 Filtek 25.09 28.31 Product Information # SKU Dimensions Format Thermoformer 9308 Zendura TRAK | 0.38 mm x 125 mm Round Pouch with 30 BioStar/ Mini Star/ Drufomat 9311 Zendura TRAK | 0.38 mm x 125 mm Round Pouch with 10 BioStar/ Mini Star/ Drufomat 9319 Zendura TRAK | 0.38 mm x 120 mm Round Pouch with 10 Erkodent 9320 Zendura TRAK | 0.38 mm x 120 mm Round Pouch with 30 Erkodent 9206-20 Zendura AT | 0.38 mm x 125 mm Round 20 Singles BioStar/ Mini Star/ Drufomat BioStar \u0026amp; MiniStar are registered trademarks of Scheu. Drufomat is registered trademark of Dreve. Erkopress is registered trademark of Erkodent.\nFootnotes \u0026amp; Trademarks # G-ænial is a registered trademark of GC Corporation.\nTransbond and Filtek are registered trademarks of 3M Company.\nTetric EvoFlow is a registered trademark of Ivoclar Vivadent AG.\nBioStar and MiniStar are registered trademarks of Scheu-Dental GmbH.\nDrufomat is a registered trademark of Dreve Dentamid GmbH.\nErkopress is a registered trademark of Erkodent Erich Kopp GmbH.\nAttachment templates are single-use thermoformed appliances used during orthodontic clear aligner setups to accurately position and transfer composite attachments to the dentition.\u0026#160;\u0026#x21a9;\u0026#xfe0e;\nBenchtop adhesion and removal force testing across standard dental composite materials.\u0026#160;\u0026#x21a9;\u0026#xfe0e;\n","date":"27 October 2023","externalUrl":null,"permalink":"/products/attachment-templates/at/","section":"Products","summary":"TWO TEMPLATES. ONE SMART CHOICE. # Attachment templates play a crucial role in orthodontic treatments with clear aligners1. These thin, single-use templates guide the precise placement of attachments that help aligners grip the teeth and aid in delivering accurate, predictable tooth movement.\n","title":"Zendura AT","type":"products"},{"content":" ENGINEERED FOR COMFORT \u0026amp; PERFORMANCE. # THE FIRST DUAL-SHELL MATERIAL FOR CLEAR ALIGNERS\nZendura FLX is a premium, multilayer aligner material designed to deliver consistent forces while enhancing patient comfort in orthodontic treatment. Its proprietary trilaminate structure combines a resilient elastomeric core with durable outer layers, delivering higher force retention and controlled tooth movement1.\nDESIGNED TO DELIVER CONSISTENT FORCES WHILE ENHANCING PATIENT COMFORT2 # Up to 150% improved force retention compared to monolayer materials 40% lower initial force3 High crack resistance based on tear strength data Ultra-clarity4 (99%) DUAL SHELLS # Two thin outer layer provide rigidity and force, while the inner elastomeric layer aids in patient comfort and flexibility.\nELASTOMERIC MIDDLE LAYER\nRESULT: ENGINEERED FOR PATIENT COMFORT AND CONSISTENT FORCE DELIVERY.\nProduct Information # SKU Dimensions Format Thermoformer 9204-20 Zendura FLX | 0.76 mm x 125 mm Round 20 Singles BioStar/MiniStar/Drufomat 9231-20 Zendura FLX | 0.76 mm x 120 mm Round 20 Singles Erkopress 9232-20 Zendura FLX | 0.76 mm x 125 mm Square 20 Singles BioStar/MiniStar/Drufomat 9207 Zendura FLX | 0.76 mm x 125 mm Round Pouch with 10 BioStar/MiniStar/Drufomat 9229 Zendura FLX | 0.76 mm x 125 mm Round Pouch with 20 BioStar/MiniStar/Drufomat BioStar \u0026amp; MiniStar are registered trademarks of Scheu. Drufomat is registered trademark of Dreve. Erkopress is registered trademark of Erkodent.\nContact Information # Global HQ BayMaterials 48450 Lakeview Blvd. Fremont, CA 94538 +1 650.566.0800 info@zenduradental.com\nNorth America: orders@baymaterials.com | Tel: +1 650 566 0800 Europe, Middle-East \u0026amp; Africa: orders-emea@baymaterials.com | Tel: +34 91 662 3435 LATAM: orders@baymaterials.com | Tel: +1 650 566 0800 APAC: orders@baymaterials.com | Tel: +1 650 566 0800 TEAR STRENGTH # Zendura FLX offers higher tear strength compared to competing materials, particularly monolayer thermoplastics. This enhanced tear strength translates to greater resistance to cracking. Tear Strength of Thermoformed Aligner Materials* # 14 samples preconditioned in artificial saliva at 37ºC for 24 hours\nZENDURA FLX (Tri-Layer): 295.82 N/mm CA PRO (Mono-Layer): 180 N/mm MAXFLEX: 91.95 N/mm ESSIX ACE: 53.26 N/mm TAGLUS PU FLEX: 34.41 N/mm GT FLEX PRO: 22.77 N/mm With an average tear strength of 295.82 N/mm, Zendura FLX is:\n64% stronger than CA Pro 250% stronger than MaxFlex 500% stronger than Essix ACE FORCE RETENTION # Force Retention refers to a material’s ability to maintain force over time. Most plastics experience a rapid force drop within the first few hours, leaving insufficient force for the intended wear period. Zendura FLX is engineered differently—it starts with lower initial forces and retains them significantly better than competing materials*, ensuring consistent performance and force delivery.\nForce: Initial vs 24 Hour* # Material Initial Force (g) 24 Hour Force (g) ZENDURA FLX 3007 1233 CA PRO 3417 722 ESSIX ACE 3884 661 TAGLUS PU FLEX 7937 661 FEATURES AND BENEFITS # At time zero, Zendura FLX starts with an initial force which is lower than CA Pro, Essix Ace, and Taglus PU Flex. Zendura FLX retains force more effectively than competitors over time. It starts with a lower initial force and also drops the least after 24 hours. Lower initial force means less insertion stress on teeth, which typically translates to greater patient comfort2. Despite the lower starting force, Zendura FLX maintains excellent force retention over time (56.8%), ensuring effective tooth movement without compromising comfort. ELASTICITY # Elastic recovery is the ability of material to recover to its original shape after deformation. Zendura FLX demonstrates high elasticity indicative of its ability to retain its shape over use period. When paired with tear strength data, Zendura FLX shows both, resistance to deformation and durability during treatment.\nElastic Recovery (24h) | 37ºC | Water* # ZENDURA FLX: 82% Essix ACE: 48% Taglus PU Flex: 28% CA Pro: 21% Duran: 16% Footnotes \u0026amp; Trademarks # CA Pro \u0026amp; Duran are trademarks of Scheu-Dental GMBH.\nMaxFlex is a trademark of Shanghai MaxFlex Technology.\nEssix is a trademark of Dentsply Sirona.\nTaglus is a trademark of Laxmi Dental.\nGT Flex a is trademark of GoodFit Technologies, LLC.\nEffective vertical movement requires not only elasticity but also sufficient impact strength to resist deformation caused by vertical occlusal forces. Zendura FLX’s hard outer shell provides the necessary strength to withstand these forces, while its inner elastic core allows for controlled tooth movement. Shukor NM, Shahrul AI, Norman NH (2025). Comparison of horizontal and vertical tooth movements in Erkodur vs Zendura FLX clear aligners. Arch Orofac Sci, 20(1): 29–41.\u0026#160;\u0026#x21a9;\u0026#xfe0e;\nThe force generated by aligners is influenced by both the aligner material and the direction of movement. Multi-layer materials exhibit superior performance compared to single-layer materials, primarily because of their lower initial force, which enhances patient comfort, and their capability to maintain consistent force application even after undergoing ageing\u0026quot;. Elshazly TM, Bourauel C, Ismail AM, Ghoraba O, Chavanne P, Elattar H, Alhotan A. Effect of thermomechanical ageing on force transmission by orthodontic aligners made of different thermoformed materials: An experimental study. Orthod Craniofac Res. 2024 Dec;27 Suppl 2\u0026#160;\u0026#x21a9;\u0026#xfe0e;\u0026#160;\u0026#x21a9;\u0026#xfe0e;\nCompared to tested materials.\u0026#160;\u0026#x21a9;\u0026#xfe0e;\nBench top data.\u0026#160;\u0026#x21a9;\u0026#xfe0e;\n","date":"27 October 2023","externalUrl":null,"permalink":"/products/aligner-materials/zendura-flx/","section":"Products","summary":"ENGINEERED FOR COMFORT \u0026 PERFORMANCE. # THE FIRST DUAL-SHELL MATERIAL FOR CLEAR ALIGNERS\nZendura FLX is a premium, multilayer aligner material designed to deliver consistent forces while enhancing patient comfort in orthodontic treatment. Its proprietary trilaminate structure combines a resilient elastomeric core with durable outer layers, delivering higher force retention and controlled tooth movement1.\n","title":"Zendura FLX - Clear Aligner Material","type":"products"},{"content":" ENGINEERED FOR ENDURANCE, BUILT FOR STRENGTH. # TRANSFORMING SMILES WITH SCIENCE. # Retainers are worn for extended periods — often overnight or full-time — and their primary job is to maintain tooth position without active force application.\nZendura A is engineered with special grade polyurethane that helps with:\nDimensional Stability Durability Crack Resistance Transparency Stain Resistance IMPACT STRENGTH # Impact strength is the ability of a material to absorb energy without fracturing. Zendura A demonstrates high impact strength compared to other materials when tested at ambient temperature.\nImpact Strength (J/mm) # Zendura A: 24.11 Taglus Tuff: 16.34 Tru-Tain DX: 8.39 Invisacryl A: 8.0 Duran: 7.23 Essix A+: 4.78 TABER ABRASION # The Taber abrasion test is a method used to measure a material’s resistance to surface wear and abrasion caused by rubbing, grinding, or repeated friction. It is reflective of materials surface durability, scratch resistance, wear resistance and long term surface integrity.\nWeight Loss (mg) | 24h | 25ºC # Zendura A: 6.27 Zendura FLX: 11.43 Taglus Tuff: 11.73 Duran: 11.77 Essix A+: 12.9 A peer-reviewed study found that Zendura A had significantly lower wear depth, than the two other commonly used thermoplastic materials (Essix ACE and Taglus), when moderate nighttime bruxing was simulated, making it “the most wear-resistant among the materials tested” 1.\nTENSILE HYSTERESIS # Tensile hysteresis (TH) is a measure of how efficiently a retainer material returns to its original form after repeated flexing. Lower TH means longer-lasting fit and better retention.\nTensile Hysteresis for Zendura A grows slowly from 16% at 1000 cycles to 23% at 10,000 cycles - indicative of excellent elastic recovery and minimal loss during prolonged cyclical loading. 3% Strain | Thermoformed | 48h | 37C | Water # Zendura A: Grows slowly from ~16% to ~23%. Essix A+: Broke before reaching 2,000 cycles. Zendura maintains very low hysteresis over 10,000 cycles.\nSTAIN RESISTANCE # Unlike conventional retainer materials, Zendura A maintains its crystal-clear appearance over extended wear period, ensuring a clean and aesthetic look for patients. 24 hours at 37ºC (∆dB) # Material Mustard Coffee Zendura A 1.34 1.05 Zendura FLX 0.86 1.32 Essix A+ 2.71 1.38 Duran 3.75 1.23 Product Information # SKU Dimensions Format Thermoformer 9157 Zendura A 0.76 mm x 125 mm Round Pouch with 20 BioStar/ Mini Star/ Drufomat 9192 Zendura A 0.625 mm x 125 mm Round Pouch with 10 BioStar/ Mini Star/ Drufomat 9193 Zendura A 0.76 mm x 125 mm Round Pouch with 10 BioStar/ Mini Star/ Drufomat 9295 Zendura A 1.02 mm x 125 mm Round Pouch with 10 BioStar/ Mini Star/ Drufomat 9156-20 Zendura A 0.76 mm x 125 mm Round 20 Singles BioStar/ Mini Star/ Drufomat 9163-20 Zendura A 0.76 mm x 120 mm Round 20 Singles Erkopress 9164-20 Zendura A 0.76 mm x 125 mm Square 20 Singles BioStar/ Mini Star/ Drufomat 9169-20 Zendura A 1.02 mm x 125 mm Round 20 Singles BioStar/ Mini Star/ Drufomat 9171-20 Zendura A 1.02 mm x 120 mm Round 20 Singles Erkopress 9190-20 Zendura A 0.625 mm x 125 mm Round 20 Singles BioStar/ Mini Star/ Drufomat BioStar \u0026amp; MiniStar are registered trademarks of Scheu. Drufomat is registered trademark of Dreve. Erkopress is registered trademark of Erkodent.\nContact Information # Global HQ:\nBay Materials\n48450 Lakeview Blvd. Fremont, CA 94538\n+1 650.566.0800\ninfo@zenduradental.com\nNorth America: orders@baymaterials.com | Tel: +1 650 566 0800 Europe, Middle-East \u0026amp; Africa: orders-emea@baymaterials.com | Tel: +34 91 662 3435 LATAM: orders@baymaterials.com | Tel: +1 650 566 0800 APAC: orders@baymaterials.com | Tel: +1 650 566 0800 Footnotes \u0026amp; Trademarks # Taglus is a trademark of Laxmi Dental. Essix is a trademark of Dentsply Sirona. Duran is a trademark of Scheu-Dental GMBH. Tru-Tain is a trademark of Tru-Tain. Invisacryl is a trademark of Great Lakes Dental Technologies.\nGrünheid, T., \u0026amp; Bitner, T. F. (2023). Wear and fatigue resistance: An in-vitro comparison of three polyethylene terephthalate glycol and thermoplastic polyurethane materials for vacuum-formed retainers. International Orthodontics, 21(2), 100748. doi:10.1016/j.ortho.2023.100748\u0026#160;\u0026#x21a9;\u0026#xfe0e;\n","date":"27 October 2023","externalUrl":null,"permalink":"/products/retainer-materials/zendura-a/","section":"Products","summary":"ENGINEERED FOR ENDURANCE, BUILT FOR STRENGTH. # TRANSFORMING SMILES WITH SCIENCE. # Retainers are worn for extended periods — often overnight or full-time — and their primary job is to maintain tooth position without active force application.\n","title":"Zendura A Clear Retainer Material","type":"products"},{"content":" TWO TEMPLATES. ONE SMART CHOICE. # Attachment templates play a crucial role in orthodontic treatments with clear aligners1. These thin, single-use templates guide the precise placement of attachments that help aligners grip the teeth and aid in delivering accurate, predictable tooth movement.\nZendura AT and TRAK are engineered with unique performance qualities, ensuring clinicians can select the ideal solution for their specific workflow and treatment goals:\nZendura TRAK is the preferred choice for clinicians due to its easier integration with most workflows: Ease of Use Flexibility Moisture Resistance Clarity Composite Compatibility2 Zendura AT remains valuable for cases where rigidity and high positional accuracy are required. AT \u0026amp; TRAK Comparison # Feature Zendura TRAK Zendura AT Flexibility ●●●● ●● Detail Capture ●●●● ●●● Moisture Resistance ●●●● ●● Clarity ●●●● ●●● Removability Easier Harder Dimensional Accuracy ●●● ●●●● Composite Compatibility ●●●● ●●● TEMPLATE ADHESION TEST # Adhesion test is a key attribute for attachment templates. Adhesion testing shows that Zendura AT templates bond more strongly to all tested composite materials compared to TRAK*, while TRAK maintains consistently lower adhesion forces—an advantage for clear aligner workflows.\nLower adhesion means TRAK templates release more easily after attachment bonding, potentially reducing the risk of accidentally removing or disturbing newly placed attachments, while AT’s higher adhesion can create stronger retention but may require more careful removal.\nBased on adhesion data, TRAK is more user friendly while still maintaining adequate accuracy of attachments.\nAttachment Removal Force (N) Across Composites* # Composite Resin Zendura TRAK (N) Zendura AT (N) G-ænial 5.50 15.00 Transbond 8.25 20.18 EvoFlow 19.84 27.66 Filtek 25.09 28.31 Product Information # SKU Dimensions Format Thermoformer 9308 Zendura TRAK | 0.38 mm x 125 mm Round Pouch with 30 BioStar/ Mini Star/ Drufomat 9311 Zendura TRAK | 0.38 mm x 125 mm Round Pouch with 10 BioStar/ Mini Star/ Drufomat 9319 Zendura TRAK | 0.38 mm x 120 mm Round Pouch with 10 Erkodent 9320 Zendura TRAK | 0.38 mm x 120 mm Round Pouch with 30 Erkodent 9206-20 Zendura AT | 0.38 mm x 125 mm Round 20 Singles BioStar/ Mini Star/ Drufomat BioStar \u0026amp; MiniStar are registered trademarks of Scheu. Drufomat is registered trademark of Dreve. Erkopress is registered trademark of Erkodent.\nFootnotes \u0026amp; Trademarks # G-ænial is a registered trademark of GC Corporation.\nTransbond and Filtek are registered trademarks of 3M Company.\nTetric EvoFlow is a registered trademark of Ivoclar Vivadent AG.\nBioStar and MiniStar are registered trademarks of Scheu-Dental GmbH.\nDrufomat is a registered trademark of Dreve Dentamid GmbH.\nErkopress is a registered trademark of Erkodent Erich Kopp GmbH.\nAttachment templates are single-use thermoformed appliances used during orthodontic clear aligner setups to accurately position and transfer composite attachments to the dentition.\u0026#160;\u0026#x21a9;\u0026#xfe0e;\nBenchtop adhesion and removal force testing across standard dental composite materials.\u0026#160;\u0026#x21a9;\u0026#xfe0e;\n","date":"27 October 2023","externalUrl":null,"permalink":"/products/attachment-templates/zendura-trak/","section":"Products","summary":"TWO TEMPLATES. ONE SMART CHOICE. # Attachment templates play a crucial role in orthodontic treatments with clear aligners1. These thin, single-use templates guide the precise placement of attachments that help aligners grip the teeth and aid in delivering accurate, predictable tooth movement.\n","title":"Zendura TRAK","type":"products"},{"content":" UNMATCHED FORCE. UNCOMPROMISED COMFORT. # THE NEXT GENERATION OF TRI-LAYER ALIGNER MATERIAL\nBuilt on the advanced architecture of Zendura FLX, Zendura VIVA is also a tri-layer thermoplastic and delivers higher sustained forces than all other tested materials under the same conditions.1\nDESIGNED FOR HIGHER SUSTAINED FORCES AND IMPROVED RESILIENCE* # 23% Higher force than Zendura FLX 167% Higher force than Scheu CA Pro 267% Higher force than Taglus PU Flex Lowest tensile modulus among all tested materials, contributing to improved resilience and patient comfort. Product Information # SKU Dimensions Format Thermoformer 9251 Zendura VIVA | 0.89 mm x 125 mm Round Pouch with 10 BioStar/MiniStar/Drufomat 9212-20 Zendura VIVA | 0.89 mm x 125 mm Round 20 Singles BioStar/MiniStar/Drufomat 9284-20 Zendura VIVA | 0.89 mm x 120 mm Round 20 Singles Erkodent 9287-20 Zendura VIVA | 0.89 mm x 125 mm Square 20 Singles BioStar/MiniStar/Drufomat BioStar \u0026amp; MiniStar are registered trademarks of Scheu. Drufomat is registered trademark of Dreve. Erkopress is registered trademark of Erkodent.\nContact Information # Global HQ BayMaterials 48450 Lakeview Blvd. Fremont, CA 94538 +1 650.566.0800 info@zenduradental.com\nNorth America: orders@baymaterials.com | Tel: +1 650 566 0800 Europe, Middle-East \u0026amp; Africa: orders-emea@baymaterials.com | Tel: +34 91 662 3435 LATAM: orders@baymaterials.com | Tel: +1 650 566 0800 APAC: orders@baymaterials.com | Tel: +1 650 566 0800 FORCE RETENTION # Force retention refers to a material’s ability to sustain its mechanical force over a defined time interval. All thermoplastic materials that were tested exhibited a rapid decrease in force within the first hour. Zendura VIVA is engineered to deliver higher sustained forces than other tested materials*, ensuring effective tooth movement throughout the wear period.\nSustained Force # Zendura VIVA demonstrated consistently higher force retention (15%-25%) over a 6-day test interval when compared to Zendura FLX. Zendura VIVA continues to maintain higher proportion of initial force relative to FLX.\nTENSILE MODULUS # The tensile modulus (Young’s modulus) measures how stiff a material is when stretched. A lower tensile modulus indicates a material that is more flexible and elastic—an important characteristic for aligners, as it influences how effectively they could deliver orthodontic forces to teeth. Materials with lower tensile modulus tend to have better resistance to cracking.\nTensile Modulus of Thermoformed Aligner Materials* # Zendura VIVA exhibits the lowest tensile modulus among all tested materials* contributing to improved resilience and patient comfort.\nTestimonials # “We now use Zendura VIVA for many of our aligners and also as specialty aligner for finishing and for challenging teeth movements. I’m also using it for hybrid cases.” — Dr. Michael Woods, DDS, MSD\n“I like Zendura VIVA a lot and sometimes use it as a retainer for adult patients and also kids if they want a more comfortable retainer.” — Dr. Rooz Khosravi, DDS, MSD\n“Zendura VIVA is an amazing aligner material and my patients love it, too. I now use it for the majority of my aligners for all stages, and it also allows me to treat a much wider range of cases with aligners.” — Dr. David Kemp, DDS, MS\nFootnotes \u0026amp; Trademarks # CA Pro is a trademark of Scheu-Dental GMBH.\nMaxFlex is a trademark of Shanghai MaxFlex Technology.\nEssix is a trademark of Dentsply Sirona.\nTaglus is a trademark of Laxmi Dental.\nTrubalance is trademark of TriStar.\nGT Flex is a trademark of GoodFit Technologies, LLC.\nAll performance claims are derived from mechanical bench testing under the conditions shown in the graphs. Full datasets and supporting documentation are on file and available upon request.\u0026#160;\u0026#x21a9;\u0026#xfe0e;\n","date":"27 October 2023","externalUrl":null,"permalink":"/products/aligner-materials/zendura-viva/","section":"Products","summary":"UNMATCHED FORCE. UNCOMPROMISED COMFORT. # THE NEXT GENERATION OF TRI-LAYER ALIGNER MATERIAL\nBuilt on the advanced architecture of Zendura FLX, Zendura VIVA is also a tri-layer thermoplastic and delivers higher sustained forces than all other tested materials under the same conditions.1\n","title":"Zendura VIVA - Clear Aligner Material","type":"products"},{"content":"Clear aligners and retainers made from Zendura materials stay fresh, clear, and comfortable with simple daily care. The guidance below applies to appliances fabricated from every Zendura material — including Zendura A, FLX, VIVA, TRAK, and AT.\nDaily cleaning # A few seconds of daily care keeps appliances hygienic and looking invisible:\nRinse immediately. As soon as the appliance comes out of the mouth, rinse it with cool or lukewarm water. This prevents saliva minerals from drying onto the surface as a stubborn white film. Wash gently. Clean the appliance with a mild, non-abrasive soap and cool or lukewarm water. Brush softly. Use a dedicated soft-bristled toothbrush to gently remove food debris, plaque, and dried saliva — no heavy scrubbing, which can scratch the polyurethane surface. Disinfecting with an effervescent soak # While ordinary soap and water can effectively clean and disinfect Zendura appliances, an occasional soak keeps them sparkling and odor-free — particularly important for long-term retainers, which are worn far longer than weekly aligner trays and accumulate more tartar and biofilm over time.\nUse an alcohol-free, non-abrasive, effervescent denture or retainer cleanser, following the manufacturer\u0026rsquo;s instructions. Products compatible with Zendura materials include:\nDentaSOAK® — alcohol-free and non-toxic Efferdent® Polident® Kenite —or their generic equivalents.\nWhat to avoid # Polyurethane is a medical-grade engineering material, but it is not enamel. A few common care mistakes can permanently damage an appliance:\nNever use regular toothpaste. Toothpaste contains micro-abrasives designed to polish hard enamel. Those particles scratch the softer appliance surface, leaving micro-grooves that make it look cloudy and harbor odor-causing bacteria. Never use hot or boiling water. Zendura materials are thermoplastics — high heat will warp the precise custom fit of the appliance, making it unusable. Never use alcohol, bleach, or harsh chemicals. Rubbing alcohol, household bleach, and alcohol-based mouthwashes degrade, weaken, and discolor the polymer structure and can cause cracking. Avoid colored dyes. Do not soak appliances in colored mouthwashes or dyed liquids; the dyes can permanently stain the crystal-clear plastic. Remove appliances to eat and drink. Take them out before meals and before drinking anything hot, colored, or sugary (coffee, tea, soda, wine). Heat distorts the appliance, and dyes and sugars trapped underneath promote staining and decay. In the lab and clinic # For technicians and clinicians fabricating appliances from Zendura sheet materials, the Instructions for Use specify a pre-delivery sanitation step:\nWash the finished Zendura appliance with a mild soap — such as a 2% Liquinox solution — and rinse well with water before delivering it to the patient.\nComplete fabrication documentation, including thermoforming parameters and finishing guidance, is available in the Instructions for Use for each material.\nAre Zendura materials safe to wear long-term? Yes — every Zendura material (Zendura A, FLX, VIVA, TRAK, and AT) is medical-grade and strictly BPA-free, phthalate-free, gluten-free, and latex-free. See the Safety Data Sheets for full regulatory documentation.\n","date":"10 August 2026","externalUrl":null,"permalink":"/resources/cleaning_and_disinfecting/","section":"Resources","summary":"Clear aligners and retainers made from Zendura materials stay fresh, clear, and comfortable with simple daily care. The guidance below applies to appliances fabricated from every Zendura material — including Zendura A, FLX, VIVA, TRAK, and AT.\n","title":"Cleaning and Disinfecting Zendura Appliances","type":"resources"},{"content":"Zendura materials are engineered from the molecular level up — and measured, tested, and validated just as rigorously. This page collects the published material science, independent research, and real-world clinical experience behind Zendura aligner and retainer materials.\nMaterial properties (standardized testing) # Our flagship materials are characterized against internationally recognized ASTM standards. The table below summarizes values historically published for the rigid monolayer retainer material Zendura A and the patented tri-layer aligner material Zendura FLX:\nProperty ASTM standard Zendura A (monolayer) Zendura FLX (tri-layer) Tensile modulus D638 ~2,400–2,650 MPa ~1,000–1,200 MPa Tensile strength (yield) D638 ~41–48 MPa ~10–15 MPa Tensile strength (break) D638 ~50 MPa ~40–45 MPa Flexural modulus D790 ~2,260 MPa (pre-forming) ~1,100–1,200 MPa Flexural strength D790 ~90–110 MPa ~35–45 MPa Elongation at break D638 ~100–130% \u0026gt;130–150% Specific gravity D792 1.20 g/cm³ ~1.19 g/cm³ Hardness (outer layer) D2240 82 Shore D ~80 Shore D Water absorption (24 h) D570 0.18% ~0.20% Light transmission D1003 \u0026gt;90% \u0026gt;90% Haze D1003 \u0026lt;1.0% \u0026lt;1.0% The contrast is intentional, not incidental: Zendura A\u0026rsquo;s toughness and rigidity make it the gold standard for long-term post-treatment retainers, while Zendura FLX\u0026rsquo;s patented structure — rigid outer shells over an elastomeric inner core — is tuned for active tooth movement.\nForce delivery and stress relaxation # Clear aligner therapy depends on a material\u0026rsquo;s ability to keep delivering light, continuous force inside a warm, wet environment (37 °C, ~100% relative humidity) for days at a time. Many materials lose most of their tooth-moving force within the first days of wear.\nIn stress-relaxation testing under in-mouth conditions (1–5% strain, 37 °C, 95–100% relative humidity, 24-hour cycles), historically published results show:\nZendura FLX requires ~40% lower initial insertion force for patient comfort, yet delivers up to 150% more continuous orthodontic force over a standard 7–10 day wear period than commodity PETG-based sheets, whose force decays rapidly. Zendura A delivers high initial force and retains its shape against tooth-induced strain for up to three years of retainer wear without cracking. Overcoming \u0026ldquo;creep\u0026rdquo; in hydrophilic polyurethane was itself an engineering breakthrough: conventional dry annealing fails because polyurethane loses its stress alignment on re-hydration, so Bay Materials developed and patented a process of annealing in a controlled, humid environment that preserves the hydrated structure while redistributing internal stress (US Patent No. 8,716,425).\nIndependent research # Gingival-margin trim design has a larger effect on aligner retention than attachments. In a study published in the Journal of Clinical Orthodontics (Cowley, Mah \u0026amp; O\u0026rsquo;Toole, 2012), researchers measured the retention of thermoformed aligners with different margin designs:\nWithout attachments, a straight cut line 2 mm above the gingival zenith was about twice as retentive as a scalloped cut along the gingival margin. With attachments, the same 2 mm trim was over four times as retentive as a scalloped cut. In other words, how the appliance is trimmed can matter more to retention than adding composite attachments — a finding that directly informs our trimming guidance for Zendura appliances.\nClinical experience: in-office aligner fabrication # Published field experience from True Dental Care (Jersey City, NJ), a general practice that moved the majority of its clear aligner production to an in-office digital workflow using Zendura FLX:\nPatients reported little to no pain wearing FLX aligners. The practice safely planned up to 0.5 mm of tooth movement per aligner. The material delivered tooth-moving forces for well over 10 days of wear. Sustained force retention and low discomfort allowed the wear cycle to be shortened from 14 days to 7 days per aligner. Operationally, switching to in-office fabrication with Zendura FLX cut retainer turnaround from 2–3 weeks (outsourced) to 1–2 days — and grew aligner treatment to more than 20% of the practice\u0026rsquo;s business.\nThe data on this page reflects values and studies published to date; some figures originate from earlier product literature and are provided for reference. For the latest validation data, regulatory filings, or test certificates for a specific material, contact our team — and see each material\u0026rsquo;s Instructions for Use and Safety Data Sheet.\n","date":"10 August 2026","externalUrl":null,"permalink":"/resources/clinical_evidence/","section":"Resources","summary":"Zendura materials are engineered from the molecular level up — and measured, tested, and validated just as rigorously. This page collects the published material science, independent research, and real-world clinical experience behind Zendura aligner and retainer materials.\n","title":"Clinical Evidence","type":"resources"},{"content":"All official Zendura documentation in one place — the paperwork behind every material we manufacture.\nBrochures # Full product brochures for each Zendura material, published in multiple languages. These include feature overviews, property summaries, and application guidance suitable for sharing with colleagues or patients.\nBrowse brochures →\nInstructions for Use (IFU) # The regulatory Instructions for Use for every Zendura material — covering intended purpose, fabrication parameters, warnings, and handling requirements. These are the authoritative documents for labs and clinicians working with Zendura sheet materials, including the pre-delivery sanitation step summarized in Cleaning and Disinfecting.\nBrowse IFUs →\nSafety Data Sheets (SDS) # Material composition and safety documentation for every Zendura product. All Zendura materials are medical-grade and strictly free of BPA, phthalates, gluten, and latex.\nBrowse SDS →\nLooking for test data and research instead? See Clinical Evidence. Need a document in a language we don\u0026rsquo;t carry yet? Contact us.\n","date":"10 August 2026","externalUrl":null,"permalink":"/resources/documents_and_downloads/","section":"Resources","summary":"All official Zendura documentation in one place — the paperwork behind every material we manufacture.\nBrochures # Full product brochures for each Zendura material, published in multiple languages. These include feature overviews, property summaries, and application guidance suitable for sharing with colleagues or patients.\n","title":"Documents and Downloads","type":"resources"},{"content":"Zendura dental materials are trusted by clinicians, laboratories, and aligner manufacturers around the world. Depending on your region, you can order direct from one of our official online storefronts or through an authorized distribution partner.\nBuy Direct Online # Buy direct · North America United States Browse the full Zendura catalog and order direct for fast US shipping.\nShop the US store Now Available Buy direct · EMEA Europe, Middle East \u0026amp; Africa Browse the full Zendura catalog, compare materials, and check out in minutes.\nShop the EMEA store Product availability varies by country and is subject to applicable regulatory approvals, clearances and local requirements. Not all products are available in every market.\nAuthorized Distributors # Outside of our direct-storefront regions, Zendura materials are available through a network of authorized distributors. Every partner keeps local inventory and offers product expertise, regional shipping, and support in your language.\nDistributor Region / Countries Website \u0026amp; Contact INSPE Ukraine inspe.ua info@inspe.ua (067) 6000 353 Medikodental Turkey medikodental.com.tr info@medikodental.com \u0026#43;90 (212) 219 97 55 Excent Group Netherlands, Belgium excent.eu \u0026#43;31 182 693 355 Dental Access (Mikrona Group / Dental Axess) Switzerland mikrona.com swiss@mikrona.com \u0026#43;41 56 418 45 45 Medord-3D Israel medord-3ds.com 03-6133350 Al Hayat Pharmaceuticals LLC SP United Arab Emirates alhayatuae.com alhayat@eim.ae 800 2122 Normalinx Pty Ltd (Ortho Emporium) South Africa, Tanzania orthoemporium.co.za info@orthoemporium.co.za \u0026#43;27 11 028 1416 Ortho-Care Ltd United Kingdom orthocare.co.uk info@orthocare.co.uk \u0026#43;44 (0) 1274 533233 Amer International S.R.L. Moldova technodent.md info@technodent.com \u0026#43;373 78 777 100 ORTOTECH Poland Poland, Croatia, Czechia, Estonia, Lithuania, Latvia, Romania, Slovakia, Slovenia ortotech.pl info@ortotech.pl \u0026#43;48 22 10 07 207 Questions about ordering Zendura materials in your country — or interested in becoming an authorized distributor? Contact our team.\n","date":"10 August 2026","externalUrl":null,"permalink":"/distributors/","section":"Zendura Dental","summary":"Zendura dental materials are trusted by clinicians, laboratories, and aligner manufacturers around the world. Depending on your region, you can order direct from one of our official online storefronts or through an authorized distribution partner.\n","title":"Global Distributors","type":"page"},{"content":"Every Zendura material is engineered for a specific role in aligner therapy — not a compromise between roles. This guide helps you match the material to the clinical application.\nAt a glance # Material Application Construction Engineered for Zendura FLX Clear aligners Patented dual-shell tri-layer Comfort-driven force delivery — the premium choice for most aligner cases Zendura VIVA Clear aligners Tri-layer The highest sustained forces combined with flexibility — strong, versatile performance Zendura A Clear retainers Rigid monolayer Strength and crack resistance over years of retainer wear Zendura AT \u0026amp; TRAK Attachment templates Template-grade Accurate, precise transfer of attachment designs to the patient\u0026rsquo;s teeth Aligners: Zendura FLX or Zendura VIVA? # Both aligner materials deliver sustained, gentle force far longer than commodity PETG sheets — the difference is emphasis:\nChoose Zendura FLX when patient comfort leads. FLX\u0026rsquo;s patented structure — rigid outer shells over an elastomeric core — yields a low initial insertion force and up to 150% better force retention over the wear period, making it the proven premium material for everyday cases. Choose Zendura VIVA when the case calls for more force. Built on FLX\u0026rsquo;s tri-layer architecture, VIVA is tuned to deliver the highest sustained forces of any tested material without giving up comfort — well suited to more demanding movements. For the data behind this comparison — standardized properties, force-retention curves, and independent research — see Clinical Evidence.\nRetainers: Zendura A # Retention is an endurance application: retainers are worn nightly, often for years, and must hold tooth position passively without active force. Zendura A is the established gold standard — a rigid monolayer polyurethane with outstanding crack resistance, impact strength, and long-term dimensional stability, including against bruxing and grinding.\nAttachment templates: Zendura AT \u0026amp; TRAK # Precision attachment placement demands a template material with accuracy you can register against the setup model. Zendura AT and Zendura TRAK are the template materials in the lineup — two options so you can pick the handling and precision profile that fits your bonding workflow.\nStill deciding? # Sheet sizes and availability are listed on each product page. Fabrication procedures are summarized in the thermoforming and trimming instructions. For application questions — especially unusual cases — contact our team. ","date":"10 August 2026","externalUrl":null,"permalink":"/resources/material_selection_guide/","section":"Resources","summary":"Every Zendura material is engineered for a specific role in aligner therapy — not a compromise between roles. This guide helps you match the material to the clinical application.\nAt a glance # Material Application Construction Engineered for Zendura FLX Clear aligners Patented dual-shell tri-layer Comfort-driven force delivery — the premium choice for most aligner cases Zendura VIVA Clear aligners Tri-layer The highest sustained forces combined with flexibility — strong, versatile performance Zendura A Clear retainers Rigid monolayer Strength and crack resistance over years of retainer wear Zendura AT \u0026 TRAK Attachment templates Template-grade Accurate, precise transfer of attachment designs to the patient’s teeth Aligners: Zendura FLX or Zendura VIVA? # Both aligner materials deliver sustained, gentle force far longer than commodity PETG sheets — the difference is emphasis:\n","title":"Material Selection Guide","type":"resources"},{"content":"Step-by-step guidance for thermoforming Zendura polyurethane sheet materials into clear aligners, retainers, and attachment templates — consolidated from the Instructions for Use published for each material. Complete IFC documents are available in Instructions for Use.\nBefore you form: sheet storage and handling # Zendura materials are highly hygroscopic — they absorb moisture from ambient air, and absorbed moisture turns to steam during heating, causing bubbling, blistering, cloudiness, and weakened mechanical properties.\nShipped pre-dried. Zendura sheets arrive fully pre-dried. Unlike PETG or acrylics, no pre-drying or oven-baking is required or recommended. Keep the foil pouch sealed. Sheets are packaged in high-barrier foil pouches with desiccant. Open the pouch only when you are ready to form. The 15-minute rule. Once the pouch is opened, thermoform the sheet within 15 minutes — less in high-humidity environments. Storage. Store unopened packages in a cool, dry place, away from direct sunlight and extreme temperatures. No protective film. Zendura sheets have no masking film to peel; both sides are identical — there is no \u0026ldquo;up\u0026rdquo; or \u0026ldquo;down\u0026rdquo; side. Model preparation # Dry and fully cured. The 3D-printed or plaster model must be completely cured and dry — residual moisture or uncured resin can cause the sheet to bond permanently to the model or bubble during forming. Trim the base. Set the model low and flat, roughly 20–25 mm (¾\u0026quot;–1\u0026quot;) tall. Taller models stretch the sheet too far and cause unacceptable thinning at the incisal edges. Block out undercuts. Fill deep voids, interproximal spaces, and undercuts with light-cure blockout resin or dental wax — otherwise the intimately-fitting material can lock onto the model and snap teeth during removal. Apply a separator. Coat the model with a thin, dry layer of model release agent, petroleum jelly, or a liquid foil separator (e.g., Al-Cote). For maximum optical clarity over 3D-printer build lines, use an ultra-thin separating film as a physical barrier between sheet and model. Forming # Use positive pressure. Pressure thermoformers operating at 4 bar (60 psi) or above (5 bar preferred) give superior adaptation and detail reproduction over vacuum forming alone. Visual \u0026ldquo;sag\u0026rdquo; cue. On machines without programmed settings: swing the heating element over the sheet until the center of the sheet sags 12–20 mm (½\u0026quot;–¾\u0026quot;) for Zendura A, FLX, VIVA, and AT — then form immediately. For Zendura TRAK, form as soon as the material starts to sag slightly. Fine-tuning. If the sheet does not adapt well, add 5 seconds of heating time. If it forms webs, folds, or bubbles, reduce heating time. Cool completely. Allow the formed sheet to cool under pressure on the model before releasing the chamber or handling the appliance. This relieves internal stress and prevents warping. Machine settings # Settings published in the materials\u0026rsquo; Instructions for Use:\nZendura A (retainer material) # Thickness MiniSTAR® MiniSTAR® S Biostar® Drufomat Scan Erkodent® 0.625 mm 220 °C · 35 s · code 132 220 °C · 30 s · code 122 220 °C · 45 s · code 152 205–210 °C · 1:15 205–210 °C · 1:25 0.76 mm 220 °C · 40 s · code 142 220 °C · 35 s · code 132 220 °C · 50 s · code 162 205–210 °C · 1:20 205–210 °C · 1:30 1.0 mm 220 °C · 45 s · code 152 220 °C · 40 s · code 142 220 °C · 55 s · code 172 205–210 °C · 1:30 205–210 °C · 1:40 Zendura FLX (aligner material) # Thickness MiniSTAR® MiniSTAR® S Biostar® Drufomat Scan Erkodent® 0.76 mm 220 °C · 40 s · code 142 220 °C · 35 s · code 132 220 °C · 45–50 s · code 152/162 205–210 °C · 1:10 205–210 °C · 1:20 Zendura VIVA (aligner material) # Thickness MiniSTAR® MiniSTAR® S Biostar® Drufomat Scan Erkodent® 0.89 mm 220 °C · 50 s · code 162 220 °C · 45 s · code 152 220 °C · 45–50 s · code 152 1:15 205–210 °C · 1:20 Zendura AT (attachment template material) # Thickness MiniSTAR® MiniSTAR® S Biostar® Drufomat Scan Erkodent® 0.38 mm 220 °C · 25 s · code 112 220 °C · 20 s · code 102 220 °C · 30 s · code 123 205–210 °C · 0:55 205–210 °C · 1:00 Zendura TRAK (attachment template material) # Thickness MiniSTAR® S Biostar® Drufomat Scan 0.76 mm 220 °C · 30 s · code 123 220 °C · 30 s · code 123 1:15 All settings assume at least 4 bar forming pressure unless noted. Always verify against the latest IFU for your material revision.\nCautions # ⚠️ Do not overheat. Excessive heating causes the sheet to sag too deeply — risking operator injury, machine damage, or extreme thinning of the appliance. ⚠️ Respect the 15-minute moisture window. Steam from absorbed moisture destroys clarity and mechanical strength. Zendura materials are contraindicated for patients with a known history of allergic reactions to plastics/polyurethane. Next step: once formed and cooled, see Trimming Instructions for separating, trimming, and finishing the appliance.\n","date":"10 August 2026","externalUrl":null,"permalink":"/resources/thermoforming_instructions/","section":"Resources","summary":"Step-by-step guidance for thermoforming Zendura polyurethane sheet materials into clear aligners, retainers, and attachment templates — consolidated from the Instructions for Use published for each material. Complete IFC documents are available in Instructions for Use.\n","title":"Thermoforming Instructions","type":"resources"},{"content":"Guidance for separating, trimming, and finishing clear aligners and retainers thermoformed from Zendura sheet materials — consolidated from the Instructions for Use published for each material.\nTrim design matters more than many clinicians expect: independent research shows the margin cut has a greater effect on appliance retention than composite attachments — see Clinical Evidence for the study.\nSeparating the appliance from the model # Polyurethane fits the model intimately, and a straight vertical pull can snap teeth on plaster or 3D-printed models. De-mold progressively:\nLift at the posterior. Slide a flat, blunt dental tool (e.g., a LeCron carver or lab knife) parallel to the model surface under the rear posterior lingual or buccal margin of the appliance. Break the vacuum. Gently twist the tool to break the suction seal and lift the rear edge. Peel forward. Flex the buccal and lingual flanges outward to clear the undercuts, then slowly peel the appliance forward from posterior to anterior. Margin design # Three trim approaches are in common use, in order of clinical preference:\nStraight cut 2 mm above the gingival zenith — the most retentive design. Independent testing (Cowley, Mah \u0026amp; O\u0026rsquo;Toole, JCO 2012) found it roughly twice as retentive as a scalloped cut without attachments, and over four times as retentive with attachments. Straight cut at the gingival zenith — a middle ground. Scalloped cut following the gingival margin — the most aesthetic, but the least retentive. Whichever design you choose, leave at least 3 mm of gingival coverage intact to preserve the appliance\u0026rsquo;s structural rigidity and force transmission.\nTrimming # Rough cut. Separate the formed appliance from the carrier frame with dental scissors or heavy shears. Precision cut. Trim to the margin line with a 1 mm carbide bur or rotary trimming wheel on a laboratory handpiece at approximately 35,000 RPM, following the intended boundary as closely as possible. Edge finishing # Smooth with silicone or rubber polishers. Work at roughly 10,000 RPM with rotary silicone/rubber polishing points or a polyurethane wheel to remove micro-burrs — moderate speed avoids melting the material. Touch-ups. A fine nail file, emery board, or fine-grit sandpaper works for quick manual edge smoothing. Check the fit. The finished appliance should snap securely onto the model, sit flush against all biting surfaces, and show no air gaps along the incisal edges. Use aligner seaters (\u0026ldquo;chewies\u0026rdquo;) for a snug seat during try-in. What to avoid # Never use a direct flame. Do not edge-flame Zendura materials with a micro-torch or alcohol burner: polyurethane degrades, yellows, and scorches under an open flame and can release hazardous fumes. On tri-layer materials (FLX, VIVA), direct heat also causes delamination of the layered structure. Skip the pumice wheel. Wet pumice slurry on rag wheels is too abrasive — it clouds and micro-scratches the high-clarity surface and can degrade the multi-layer construction. Use dry silicone polishers instead. Never use hot water. Hot or boiling water distorts the thermoformed appliance. Pre-delivery sanitation # Wash the finished appliance with a mild soap (such as a 2% Liquinox solution) and rinse well with cool water before delivering it to the patient. Patient-facing care guidance for the appliance\u0026rsquo;s lifetime of wear is in Cleaning and Disinfecting.\nAuthoritative fabrication documentation lives in each material\u0026rsquo;s Instructions for Use.\n","date":"10 August 2026","externalUrl":null,"permalink":"/resources/trimming_instructions/","section":"Resources","summary":"Guidance for separating, trimming, and finishing clear aligners and retainers thermoformed from Zendura sheet materials — consolidated from the Instructions for Use published for each material.\nTrim design matters more than many clinicians expect: independent research shows the margin cut has a greater effect on appliance retention than composite attachments — see Clinical Evidence for the study.\n","title":"Trimming Instructions","type":"resources"},{"content":"","date":"10 August 2026","externalUrl":null,"permalink":"/","section":"Zendura Dental","summary":"","title":"Zendura Dental","type":"page"},{"content":"","date":"22 April 2026","externalUrl":null,"permalink":"/categories/","section":"Categories","summary":"","title":"Categories","type":"categories"},{"content":"","date":"22 April 2026","externalUrl":null,"permalink":"/categories/products/","section":"Categories","summary":"","title":"Products","type":"categories"},{"content":"For more than two decades, Zendura Dental has set the benchmark for advanced thermoplastic materials in orthodontics and dentistry. Explore our application-specific product families below to compare technical specifications, determine the ideal material for your clinical workflows, or contact our support team to request physical samples.\n","date":"22 April 2026","externalUrl":null,"permalink":"/products/","section":"Products","summary":"For more than two decades, Zendura Dental has set the benchmark for advanced thermoplastic materials in orthodontics and dentistry. Explore our application-specific product families below to compare technical specifications, determine the ideal material for your clinical workflows, or contact our support team to request physical samples.\n","title":"Products","type":"products"},{"content":"Our retainer materials are engineered for the high-demand post-treatment retention phase, balancing long-term durability with essential appliance flexibility. From the semi-active performance of Zendura Guard to the legendary strength of Zendura A, select a material below to explore detailed wear-resistance data and compatibility guides.\nZendura A is a strong choice for retainer fabrication where strength and resistance to functional forces are desired. Its mechanical properties may make Zendura A a suitable material option where higher strength and resistance to functional forces are desired.\nZendura Guard is designed for retainer fabrication where flexibility and a softer material response are desired. Its flexibility and softer material response may make Zendura Guard a suitable option where a less rigid retainer material is desired.\n","date":"22 April 2026","externalUrl":null,"permalink":"/products/retainer-materials/","section":"Products","summary":"Our retainer materials are engineered for the high-demand post-treatment retention phase, balancing long-term durability with essential appliance flexibility. From the semi-active performance of Zendura Guard to the legendary strength of Zendura A, select a material below to explore detailed wear-resistance data and compatibility guides.\n","title":"Retainer Materials","type":"products"},{"content":"","date":"22 April 2026","externalUrl":null,"permalink":"/categories/retainers/","section":"Categories","summary":"","title":"Retainers","type":"categories"},{"content":"","date":"14 April 2026","externalUrl":null,"permalink":"/legal/","section":"Legals","summary":"","title":"Legals","type":"legal"},{"content":" 1. Introduction # Zendura™ is developed and published by a US company Bay Materials, LLC (“Bay Materials”). Bay Materials is part of the Institut Straumann AG. The protection and security of personal data is of paramount importance to Institut Straumann AG and its affiliates. We collect and process personal data in compliance with applicable data protection and privacy laws and regulations, including the GDPR (EU Data Protection Regulation) and Swiss data protection law. Bay Materials controls all data pertinent to Zendura™.\nIt is important for us that you are aware of which personal data are collected when you visit our website and when you make use of our services or offers. We also want you to be aware of how we use this data subsequently. This privacy notice provides information on this and about how we protect your personal data from manipulation, loss, destruction or improper use. This policy is relevant and governs Bay Materials\u0026rsquo; actions concerning customer data privacy in the United States and the European Union. Specific Bay Materials services may be subject to further information, which we will provide in additional privacy notices.\n2. What measures do we implement to keep your data secure? # We take technical and organizational security measures to protect your personal data against accidental or intentional manipulation, loss, destruction or access by unauthorized persons. The measures are designed to ensure the confidentiality and integrity of your data and to ensure the continued availability and resilience of the systems and services processing them. Our security measures include encryption of your data, firewalls and password protection. Our data processing and security measures are improved constantly in line with technological developments. Please note, however, that, when accessing our websites and services, you are solely responsible for using adequately secured devices (e.g. antivirus software) in order to avoid any unauthorized access by third parties.\n3. How do we use your personal data? # ‘Personal Data’ refers to any information that identifies, or can be used to identify, you personally, for example your name, address, phone number, email address or invoicing details. We collect and process Personal Data only if permitted by law or if you have given prior consent. We will process and store your information as long as we are required to do so by law or until the reasonable fulfilment of the purposes for which it was collected; for your revocation, withdrawal and deletion rights please see sections 7 and 9 below. We obtain Personal Data relating to you either directly from you, from partnered third party companies whose products you have acquired and, to the extent legally permitted, from publicly available sources. Unless otherwise provided in specific separate applicable documentation or in specific sections hereunder, Bay Materials is always an independent controller under applicable data protection laws.\nOur processing of your Personal Data depends on your interaction with us and requires your consent or a legal basis. It includes the following:\na. Contact and information requests # We use your Personal Data to process and respond to your contact and information requests. The legal basis depends on the nature of the request: contractual necessity, your consent or our legitimate interests.\nb. E-Commerce Store \u0026amp; Orders # We use your Personal Data for registration in our E-Commerce Store and other platforms to process your orders, payments, invoicing and for providing customer support. Your details will also be processed by our production partners and for shipping the products you order as well as to address your inquiries about products. Our legal bases are contractual necessity, your consent, the defense of legal claims and legal obligations to which we are subject to, such as retention of invoices for statutory retention periods. Your Personal Data may further be used to improve the E-Commerce Store based on our legitimate interests.\nc. Offline and online Marketing # We may inform you about our products, services, training courses, events and customer surveys in the field of dentistry. We may also conduct customer analysis, which may include the combination of data we receive from you offline and online, in order to provide you with customized information or offers as well as courses, events and customer satisfaction surveys which may be of interest to you in the field of dentistry. Our legal bases are your consent or our legitimate interests.\nd. Course \u0026amp; event registrations We use your Personal Data to carry out registration for courses and events, to provide subscribed services, and to send invoices, based on your consent or our contractual obligation. We may also provide you with information about such courses or events based on your consent or our legitimate interests. Where applicable and indicated, your details will also be processed by our cooperation partners for the execution and/organization of the courses and events. We may further process the data based on legal obligations to retain data pertaining to invoices or contracts, our legitimate interests, and the defence of legal claims.\ne. Social media pages # Bay Materials may have a presence on certain social media networks, such as Facebook, LinkedIn, TikTok and Instagram. These offer you the opportunity to respond to our posts, comment on them, create a user post yourself and to send us private messages with personal concerns. For EEA countries, certain aspects of the administration of those social media pages is performed based on joint controllership subject to the terms provided by such social media networks, which also make available the essence of the arrangement with Bay Materials. The data you provide in this context and which may be accessible to us (e.g. username, pictures, interests if applicable, contact data, interactions with our pages, likes and comments to our posts, direct messages) will be used by us exclusively for the purpose of customer and prospect communication based on our legitimate interests. Our interest lies in providing you with a platform on which we can display up-to-date information and with the help of which you can address your request to us and we can respond to your request in a timely manner.\nf. Regulatory obligations and scientific research # In its role as legal manufacturer of medical devices, Bay Materials is subject to a variety of laws, regulations and standards globally which aim at providing a high levels of patient health protection and high quality and safety standards for medical devices. As such, Bay Materials is required to ensure the safety, quality, and effectiveness of its products through compliance with the following non-exhaustive list of obligations: obtaining regulatory authorities’ approvals, informing itself about and tracking, monitoring and reporting adverse events, testing and clinical evaluations, post market clinical follow-up reporting and surveillance processes, maintenance of quality management systems and quality complaints processes. When data is passed on to the regulatory authorities in this context it is always in an aggregated or pseudonymized form so as not to enable identification of the data subjects involved. The legal bases for these further processing activities are our legal obligations and the public interest in ensuring high quality and safety standards for medical devices and health care treatments, scientific research, and the defense of legal claims, or our legal obligations and our legitimate interests in complying with cross-border laws and regulations applicable to us and a public interest in global medical devices safety standards as well as the defense of legal claims. Data subject consent may be the applicable basis where legally required. Scientific research, product development and clinical evaluations may also be performed by Bay Materials, in compliance with applicable laws and regulations, based on pseudonymized data and with all appropriate documentation and information in place. The legal bases for such processing activities are our legitimate interests in achieving high quality and safety standards for our medical devices, patient health care as well as scientific research.\ng. Statistical and usage data # Bay Materials uses product- and service-related information pertaining to performance and usage (“Usage Data”) to analyze and better understand how our products and services are used. This information, which may be processed in aggregated or pseudonymized form, helps us improve existing offerings, develop new ones, enhance training, optimize product usage, and ultimately provide better support to users. Bay Materials may obtain such Usage Data directly through your use of our products and services, or through OEM partners when you have purchased or interconnected with those products or services through our platforms or websites. The legal bases for this processing are your consent or our legitimate interests.\nh. Referrals # Through your use of our products and services you may be able to refer, or grant access to, patient cases to other healthcare professionals. You are fully and solely responsible for ensuring that you have all appropriate consents and information notices in place to grant such healthcare professionals access to such patient cases. You warrant to Bay Materials that you will only refer or grant access to such patient cases in a lawful manner and in compliance with applicable laws, regulations and professional standards applicable to you.\n4. Patient Data # Certain services provided by Bay Materials, such as orthodontic treatments, require the provision of patient data. We process any such provided personal data securely and with all necessary care as described under Section 3 above or as otherwise further described in this Privacy Notice. We ask you to only provide us with personal data if and where required. Please do not use directly identifiable information, such as patient name, in reference fields.\nUnless specifically agreed otherwise with Bay Materials, you are considered an independent controller for the healthcare services and treatments you provide and prescribe to your patient. You warrant that where and when legally required, you have obtained appropriate patient consent for the medical treatment of your patient and provided him with the appropriate data protection information notice. If personal data is shared outside of the dedicated channels provided by Bay Materials, you are responsible for ensuring that such data is shared in a secured manner by using appropriate encryption.\n5. Mandatory Information # If a data collection form contains data fields that are marked as mandatory or with an asterisk (*), the provision of such information is either required by law or by contract or may be needed for the conclusion of a contract, provision of services or the fulfillment of the stated purpose. If you do not provide the required information, this may result in us not being able to fulfill a contract, the requested service not being provided or the stated purpose not being achievable.\n6. With whom do we share your data? # Your Personal Data and personal data of third parties you provide to us may be shared with third-party service providers, suppliers and other cooperation partners used by Bay Materials for processing your orders, requests and registrations for courses and events. Such Personal Data may also be shared with third-party service providers that provide support services to Bay Materials, including, for example, printers, lettershops, call centers, advertising agencies, internet and IT service providers, certification partners, notified bodies and data centers. In addition, we may share your information with other affiliates of Bay Materials, in particular for support, processing, supply or marketing purposes.\nOur service providers, suppliers and other cooperation partners may only process your Personal Data for our purposes. Any sharing of Personal Data with third parties and affiliates is subject to their compliance with our privacy and confidentiality terms.\nSome or all of our service providers, suppliers and other cooperation partners may be located outside of your country of residence, for the purposes set forth in this Privacy Notice or other applicable data protection terms. Data protection standards and legislation in such countries may differ from those in your country of residence. For such transfers, Bay Materials will protect the personal data in compliance with what is required under applicable data protection laws and ensure that an adequate level of protection is satisfied under such laws. Bay Materials will rely on the so-called Standard Contractual Clauses for these transfers if the respective is not subject to an adequacy decision and none of the derogations apply. Please contact us if you have further questions, including on where to obtain a copy.\n7. Your right to object to processing # You have the right to object to the processing of your Personal Data by us, on grounds relating to your particular situation, subject, however, to applicable legal requirements or rights. If you object to the processing of your data or want to revoke a given consent, please send a short message to the email or postal address provided under Section 9.\na. Right to Know and Right to Deletion # You have the right to request that Bay Materials disclose what Personal Information is collected, used and disclosed. You further have the right to request that Bay Materials delete your Personal Information collected or maintained by Bay Materials. In order to comply with a request for information or deletion and verify the identity of the requester, Bay Materials may require the requester to verify up to 3 pieces of Personal Information maintained by Bay Materials. To request data on Personal Information collected, used or disclosed or to request a deletion of your Personal Information, contact Bay Materials at info@baymaterials.com\n8. Server log files and cookies # Every time a visitor accesses our website, data about this process is temporarily stored in a log file (Server Log Files) and processed. The log file stores the following information:\na description of the type and version of the web browser used the operating system used the referrer URL category the host name of the accessing terminal the date and time of the server request the IP address. An IP address is a numerical address of your technical device (computer or mobile device) used for accessing the internet and our websites. The IP address enables communication between computers and servers. The processing of this so-called server log data by Bay Materials is required for technical reasons, website analysis and improvement as well as to ensure system security.\nLike many other companies, we also use so-called “cookies” and comparable technologies on our websites and in our apps. Cookies are small files that are sent to and stored on your device and kept ready for later retrieval. We use both permanent cookies that will remain on your device when you leave the Bay Materials website, and session cookies which expire when the browsing session ends, or you choose to close the browser window. To the extent required by applicable laws we will ask for your consent prior to using these technologies. We will also provide information about who can place and/or read cookies, as well as other information required under applicable data protection laws. To the extent applicable law does not require consent, we rely on our legitimate interests in facilitating and ensuring technical features, making interactions with our websites and apps user-friendly and our interest to match your needs optimally or to evaluate visits to our website for marketing and optimization purposes.\nYou can manage cookies by removing cookies from your device: you can delete all cookies that are already on your device by clearing the browsing history of your browser. This will remove all cookies from all websites you have visited. Be aware though that you may also lose some saved information (e.g. saved login details, site preferences). You can also manage site-specific cookies in the privacy and cookie settings in your preferred browser. You can set most modern browsers to prevent any cookies being placed on your device, but you may then have to manually adjust some preferences every time you visit a site/page, and some services and functionalities may not work properly at all (e.g. profile logging-in).\n9. Information and exercise of privacy rights # If you have any questions about our collection and use of your Personal Data, we will gladly provide it.\nIn addition, you have the right to rectification, deletion, limitation of processing, opposition to processing and data portability, subject, however, to legal requirements or rights. In each case, please contact us at the following address:\nBy postal mail: Bay Materials LLC\n48450 Lakeview Blvd Fremont, CA 94538\nYou may also contact our data protection officer at: complaints@baymaterials.com. If you require more information about your privacy rights or wish to file a complaint, you can also contact a protection supervisory authority.\n10. Amendments # We reserve the right to update this privacy notice from time to time. The amended version of the privacy notice will be published on this website with a new version date. Therefore, please read through the privacy notice again when you revisit us. Access to and use of Bay Materials websites and any data collected thereby are subject to the privacy notice published on the respective website at that time.\nVersion: November 2025\n","date":"14 April 2026","externalUrl":null,"permalink":"/legal/privacy/","section":"Legals","summary":"1. Introduction # Zendura™ is developed and published by a US company Bay Materials, LLC (“Bay Materials”). Bay Materials is part of the Institut Straumann AG. The protection and security of personal data is of paramount importance to Institut Straumann AG and its affiliates. We collect and process personal data in compliance with applicable data protection and privacy laws and regulations, including the GDPR (EU Data Protection Regulation) and Swiss data protection law. Bay Materials controls all data pertinent to Zendura™.\n","title":"Privacy Policy","type":"legal"},{"content":" General Terms and Conditions of Sale (T\u0026amp;C) of Bay Materials (\u0026ldquo;Straumann\u0026rdquo;) # 1. General Provisions, Scope of Validity, Other Conditions # 1.1 All offers, deliveries, and services to the persons described in 1.2 are governed exclusively by these T\u0026amp;C. Any customer conditions that contradict or are not included in these T\u0026amp;C will not be accepted unless expressly agreed in writing.\n1.2 These T\u0026amp;C apply to individuals acting in a professional or commercial capacity (“entrepreneurs”), public legal entities, and special public assets. They do not apply to consumers.\n1.3 For software from other manufacturers, their license terms prevail. Straumann will provide these terms upon request before contract conclusion.\n2. Contract Formation, Modifications, Documentation # 2.1 A contract is formed upon written confirmation of the buyer’s order or upon execution by Straumann. Oral agreements or changes are only valid if confirmed in writing.\n2.2 Straumann may make changes to product design or materials as long as they do not significantly affect the intended use.\n2.3 Straumann retains ownership and intellectual property rights over all documents and materials unless clearly non-confidential.\n3. Delivery Time, Own Supply Reservation, Buyer Insolvency, Delay in Acceptance # 3.1 Delivery dates are binding only if agreed in writing.\n3.2 Delivery time may be extended due to force majeure or unforeseen obstacles.\n3.3 Straumann is not liable for delays caused by its suppliers.\n3.4 If buyer’s solvency is in doubt, Straumann may withhold services unless payment is made or guaranteed.\n3.5 In case of buyer delay in acceptance or payment, Straumann may cancel the contract and claim compensation (20% to 100% of the purchase price depending on the product).\n3.6 If Straumann delays delivery, the buyer may cancel the contract after a reasonable grace period.\n4. Delivery, Shipping, Risk Transfer # 4.1 Shipments are at the seller’s risk until arrival at destination.\n4.2 Straumann chooses the shipping method unless otherwise agreed.\n4.3 For third-party products, Straumann provides standard packaging only.\n4.4 Partial deliveries are allowed and may be invoiced separately.\n5. Prices and Payment # 5.1 Prices are in local currency, EXW (Incoterms 2020), excluding packaging, shipping, and VAT.\n5.2 The price in the order confirmation or current price list applies.\n5.3 Payments are due within 30 days of invoice date.\n5.4 Buyer bears all payment-related costs.\n5.5 Late payments incur legal interest.\n5.6 Offsetting is allowed only with undisputed or legally confirmed claims.\n6. Retention of Title and Other Securities # 6.1 Straumann retains ownership until full payment is received.\n6.2 Buyer may use or resell goods but not pledge or transfer them as security.\n6.3 In case of default, Straumann may reclaim goods or demand assignment of claims.\n6.4 Buyer assigns claims from resale or insurance to Straumann.\n6.5 Buyer must notify Straumann of any third-party seizure of goods.\n7. Buyer’s Duty to Inspect, Defect Claims # 7.1 Defects must be reported within 8 business days of delivery or discovery.\n7.2 Visible transport damage must be certified by the carrier and reported to Straumann.\n7.3 Straumann may repair or replace defective goods.\n7.4 Only defects present at risk transfer are covered.\n7.5 Warranty period is one year, except for personal injury or fraud.\n7.6 Straumann’s liability for defects is limited.\n7.7 For third-party products, Straumann may assign claims to the buyer.\n8. Limitation of Liability # 8.1 Straumann is liable only for intent or gross negligence.\n8.2 No liability for lost profits or indirect damages.\n8.3 Exceptions apply for fraud or where prohibited by law.\n8.4 Limitations also apply to Straumann’s personnel.\n9. Intellectual Property # 9.1 No intellectual property rights are transferred to the buyer. Straumann retains all rights to designs, drawings, and documents.\n10. Special Terms for Dental Prosthesis and Jaw Models from Scanned Data # 10.1 Orders via scanner do not require acceptance confirmation.\n10.2 Monthly invoicing for prosthesis; immediate invoicing for jaw models.\n10.3 Buyer must ensure correct data transfer and trained personnel.\n10.4 No claims for defects due to incorrect scanning or data transfer.\n10.5 Buyer must send defective items and scanned models for verification.\n11. Special Terms for Scan and Scan\u0026amp;Shape Services # 11.1 Scan service: Straumann manufactures based on wax model provided by buyer.\n11.2 Scan\u0026amp;Shape: Straumann manufactures strictly according to buyer’s specifications.\n11.3 Wax models are destroyed after 90 days unless a defect is reported.\n11.4 No liability for modified prosthetic elements.\n12. Special Terms for Online Orders via Straumann Portal # 12.1 Portal is for qualified professionals in Spain.\n12.2 Registration is required; credentials are non-transferable.\n12.3 Online orders are binding upon submission.\n12.4 Delivery dates are binding only if confirmed in writing.\n13. Special Terms for Online Orders of Zendura Materials # 13.1 Products are sold only to qualified dental professionals and dental laboratories in the countries where the products are offered. They are industrial/dental materials intended solely for professional use and not for consumer self-treatment or as finished medical devices. Buyer is responsible for determining the regulatory classification, intended use, and lawful placement on the market of any finished appliances fabricated using the materials, and for complying with all applicable EU, UK, and local regulations.\n13.2 Online orders placed via our portal are binding upon submission. We may, in our sole discretion, refuse or cancel any order, verify the purchaser’s identity or payment instrument, and/or limit the quantities purchased per account, organization, or delivery address.\n13.3 An order is deemed accepted only upon shipment of the products and issuance of a shipping confirmation.\n13.4 Delivery dates are binding only if expressly confirmed in writing by Straumann.\n13.5 Products are sold on a pre-paid basis, as indicated in the order confirmation.\n13.6 Buyer may purchase Products only for their own professional use and not for resale, unless expressly authorized in writing by Straumann.\n13.7 Product availability is not guaranteed. Straumann may discontinue products without prior notice or, with your consent, supply a functionally equivalent substitute.\n13.8 While Straumann strives for accuracy, typographical or system errors may occur. Straumann reserves the right to correct any such errors (including in pricing, description, or availability) and to cancel affected orders, providing a prompt refund if the order cannot be fulfilled on the corrected terms.\n13.9 Straumann warrants that for thirty (30) days from delivery, the products will be free from visible damage and material defects in workmanship or packaging.\nAdditionally, for one (1) year from the date of delivery, we warrant that the Products will materially conform to our published specifications, provided they are stored and handled under recommended conditions\nAs Buyer’s exclusive remedy and Straumann’s entire liability under this warranty, Straumann will, at Straumann’s option:\n(a) replace the non-conforming product, or\n(b) refund the purchase price of the affected units.\nThis warranty does not cover misuse, improper storage or thermoforming, normal wear, damage caused by transportation or contamination, or any modification or combination of the products with third-party materials\nThe nominal shelf life of the products (typically five years) does not extend the duration of this limited warranty. The one-year warranty period is a contractual warranty period and remains valid irrespective of the shelf-life indication printed on the packaging\nTo the maximum extent permitted by applicable law, in no event shall Straumann be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, or for any loss of profits, revenue, goodwill, or data, even if advised of the possibility of such damages.\nStraumann’s total aggregate liability for all claims relating to the products or the online ordering platform shall not exceed the amount Buyer paid for the product(s) giving rise to the claim.\n14. Return and Exchange Policy # 14.1 Non-returnable items include:\nCustom-made products Promotional items Equipment and software Items requiring special storage 14.2 Other items must be in perfect condition and returned within 30 days.\n14.3 Returns must include invoice or delivery note.\n14.4 Items must be securely packaged.\n14.5 Straumann decides final condition of returned goods.\n14.6 Exchanges within 6 months are credited at original price.\n14.7 Buyer bears return shipping and liability costs.\n15. Final Provisions # 15.1 Place of performance is Straumann’s address.\n15.2 Spanish law applies.\n15.3 Exclusive jurisdiction lies with Straumann’s local courts.\n15.4 Invalid clauses will be replaced with valid ones closest in intent.\n","date":"14 April 2026","externalUrl":null,"permalink":"/legal/sale/","section":"Legals","summary":"General Terms and Conditions of Sale (T\u0026C) of Bay Materials (“Straumann”) # 1. General Provisions, Scope of Validity, Other Conditions # 1.1 All offers, deliveries, and services to the persons described in 1.2 are governed exclusively by these T\u0026C. Any customer conditions that contradict or are not included in these T\u0026C will not be accepted unless expressly agreed in writing.\n","title":"Terms of Sale","type":"legal"},{"content":" 1. Acceptance of these Terms of Service # Zendura™ is developed and published by Bay Materials, LLC (hereinafter “Bay Materials”). All Intellectual Property Rights are owned by Bay Materials and its licensors.\nYour (“You”) use of the zenduradental.com website and /or any other information exchange media, made available by Bay Materials (collectively the “Online Shop”) and any Products You order via the Online Shop is governed by these Terms of Service (“Terms of Service”).\nBY ACCESSING THE ONLINE SHOP AND/OR USING IT YOU ACCEPT AND UNDERTAKE TO BE BOUND BY THESE TERMS OF SERVICE. IF YOU DO NOT ACCEPT THESE TERMS OF SERVICE, DO NOT ACCESS AND/ OR USE THE ONLINE SHOP.\nIf You are under 18 years of age or a minor in your country of residence, please ask Your legal guardian to complete your registration to the Online Shop for you. If You are under 10 years of age You are not entitled to use the Online Shop.\nSubject to Your acceptance of and compliance with these Terms of Service, Bay Materials grants You a personal, limited, non-exclusive, revocable and non-transferable license to use the Online Shop solely as for Your personal and non-commercial purposes as set forth in these Terms of Service.\nPlease note that the terms and conditions related to privacy and protection of Your personal information are governed by the Privacy Policy provided in the Online Shop (“Privacy Policy”). You hereby confirm that You have read and accept our Privacy Policy.\n2. Contact details of Bay Materials # Bay Materials, LLC.\nAddress: 48450 Lakeview Blvd., Fremont, CA 94538\nContact: info@baymaterials.com\n3. Provision and use of the Online Shop # Bay Materials has the right to provide the Online Shop as it deems appropriate including the right to amend the Online Shop. If such changes necessitate changes in Your operating environment or other devices, You shall make such changes at Your own expense. Bay Materials aims to notify You of any substantial changes that materially affect the use of the Online Shop a reasonable time in advance.\nBay Materials may suspend the Online Shop where necessary for example for installation, amendment or maintenance work or if laws, regulations or authorities so require or if there are other justifiable reasons for suspension. Bay Materials aims to ensure that the suspension is as short as possible. Bay Materials has the right to terminate the Online Shop at its sole discretion. Should any suspensions or termination of the Online Shop occur, Bay Materials aims to reasonably notify You of such occurrences in beforehand.\nYou agree to use the Online Shop in a manner that does not cause harm to Bay Materials, other users or third parties. Bay Materials reserves the right to terminate or restrict Your access to the Online Shop without prior notice if You violate these Terms of Service or if You abuse the Online Shop or load the Online Shop to an unusual extent. Bay Materials is entitled to prevent access to the Online Shop if it has reason to believe that You are engaged in illegal activity or compromise other users\u0026rsquo; or Bay Materials\u0026rsquo;s data security or privacy.\nBay Materials may use subcontractors to fulfill its obligations pertaining to the Online Shop and/or these Terms of Service.\n4. Products, Shipping and Product return Policy # Products\nBy using the Online Shop You may purchase (but not limited to) the Zendura® Dental Materials (“Products”). The sale becomes binding between You and Bay Materials when Bay Materials receives Your payment.\nBay Materials takes commercially reasonable efforts to provide You with Product information that is as accurate as possible. Bay Materials does not however warrant that the Product information or other content on the Online Shop is accurate, reliable, complete or error-free. Should a Product offered by Bay Materials itself appear to be contrary to the Product information provided by Bay Materials, Your sole remedy is to return the Product(s) in unused condition as set forth below.\nShipping\nShipping times may vary depending on the Product, its availability, destination and other possible practical factors.\nShould You wish to receive a printout of an order You have placed, this can be done by printing out the order confirmation You receive after You have placed Your order. This confirmation will be sent to You by e-mail after You have completed the order process by clicking on \u0026ldquo;Complete my Purchase\u0026rdquo; (or an equivalent) and once your payment information has successfully been processed. Further, you will receive a shipping confirmation once the Product(s) have been shipped to You.\nProduct return\nReturn is free with any purchase from Zendura online store. If You experience any difficulties in using our product or the product fails to perform up to your expectation. You can request for a return and ship the product back to us for full refund within 20 days of purchase.\nPlease include the initial invoice and used/defective parts in the return package and keep the unused items in sellable condition. To request for a return label sent to your email account and start the return process, please fill out the “Request for Return” form on the website.\n5. Pricing # The prices in force from time to time are specified in connection with each Product. Shipping charges are added when applicable and they may vary in accordance with the shipping destination and other applicable practical factors. The prices shall include all public charges determined by the authorities, including sales tax or value added tax pursuant to the legislation in force from time to time. Please note that the public charges may vary depending on the country You reside in. Payment will be done at the time of purchase using the available payment methods.\nAdditional customs, duties as well as brokerage charges may however apply depending on the shipping destination and will be collected at the time of delivery. Please note that Bay Materials is not responsible for such charges.\nAccepted payment methods are specified in the Online Shop web site. You can pick the payment method You wish to use during the checkout process. The payment interface uses SSL secure server with digital certificates and Your payment information is fully encrypted during the checkout process.\n6. Intellectual Property Rights # Copyrights\n© 2000-2011 Bay Materials, LLC. All materials and contents contained in this Web site (including but not limited to the text, graphics, logos, button icons, images, audio clips, software and source code), and the Web site itself, are copyrighted materials belonging exclusively to Bay Materials, LLC. (\u0026ldquo;Bay Materials\u0026rdquo;) or its content suppliers and are protected by federal Copyright Law and international treaties. Bay Materials enforces its copyright interests to the fullest extent permitted under the law, and shall seek civil and criminal remedies where appropriate, including the remedies provided for under sections 501 et seq. of Title 17 of the U.S. Code. All rights are reserved.\nTrademarks\nZendura®, ZenduraDental, the \u0026ldquo;Zendura\u0026rdquo; logo, the Zendura website and trade dress are the exclusive property and trademarks of Bay Materials. Bay Materials reserves all of its rights in the premises, including all rights applicable under the U.S. and international trademark laws, including, without limitation Section 1125 of Title 15 of the U.S. Code (Lanham Act Sec. 43). All other referenced marks are those of their respective owners. © 2000-2026 Bay Materials, LLC. All Rights Reserved.\n7. Feedback # In connection with Your use of the Online Shop You may provide Bay Materials with suggestions, ideas, reviews, comments, questions or other information and/or material regarding the Online Shop (“Feedback”). After providing the Feedback to Bay Materials You continue to retain any Intellectual Property Rights to the Feedback that You may have and You grant Bay Materials and its partners a worldwide, perpetual, irrevocable and royalty-free right and license to use, copy, amend, modify, translate, further develop and make derivative works of the Feedback. You acknowledge that You also give to Bay Materials, without charge, the right to commercialize Your Feedback in any way and for any purpose. Bay Materials has no liability for any loss or damage suffered by You as a result of the disclosure or use of such Feedback.\nYou agree not to provide Bay Materials with Feedback that is subject to a third party license that requires Bay Materials to license the Online Shop or the material contained therein to third parties because Bay Materials includes Your Feedback in the Online Shop. Further, Bay Materials does not solicit or wish to receive any Feedback from You that is deemed confidential or proprietary, unless specifically so requested by Bay Materials. Any Feedback that You submit to Bay Materials will be deemed non-confidential or non-proprietary, unless Bay Materials has specifically stated otherwise.\nNotwithstanding anything to the contrary, the protection of Your personal data is at all times subject to Bay Materials’s Privacy Policy.\n8. Indemnification # You shall be liable and agree to indemnify Bay Materials and third parties for and against all damages, which are caused by Your unlawful behavior or Your breach of these Terms of Service.\n9. Links to Third Party Sites # The Online Shop may contain links to sites, which are owned or operated by third parties (“Third Party Sites”). Bay Materials shall not be responsible for the content or for products or services offered by third parties. Further, the content on Third Party Sites may be subject to separate terms of service and/or privacy policies, the contents of which Bay Materials recommends You to review.\n10. Force majeure # A force majeure event shall discharge Bay Materials from its obligations with respect to the Online Shop in the event that the said force majeure event prevents or unreasonably impedes the performance pertaining to the Online Shop. Examples of force majeure include fire, earthquake, flood, explosion, strike or other stoppage of work, orders of public authorities, disruption of energy supplies, shortage of raw materials or equipment, disruption of cable or other data communications caused by or arising from outside factors, or other comparable causes that were not foreseen and that could not reasonably have been prepared for in advance.\nBay Materials shall seek to announce force majeure through the Online Shop immediately whenever such announcement is possible.\n11. Amendments and Termination # Bay Materials has the right to amend these Terms of Service by notifying You of such amendments reasonably in advance. Bay Materials delivers the amended Terms of Service to You via the Online Shop or some other suitable means at its discretion. Your continued use of the Online Shop after receiving the notification regarding such amendments shall be deemed as Your acceptance of the amended Terms of Service.\nIn case You object the entry into force of the amended Terms of Service and if You and Bay Materials do not agree otherwise in writing, Your right to use the Online Shop shall terminate on the date the amended Terms of Service enter into force.\nBay Materials may also at its discretion notify You of amendments and make the amended Terms of Service available without prior notice upon the next time You access the Online Shop and make it conditional for continued use of the Online Shop for You to specifically accept the amended Terms of Service (for example by clicking “Accept”). However, should You choose not to accept the amended Terms of Service made available to You in accordance with this paragraph Your right to use the Online Shop shall terminate immediately.\nIf, at any time, any provision hereof is or becomes illegal, invalid or unenforceable in any respect under the law of any jurisdiction, the legality, validity or enforceability of the remaining provisions shall in no way be affected or impaired thereby. The invalid provision shall be replaced by a valid one which achieves the original purpose and commercial goal of the invalid provision to the extent possible.\n12. Limitation of liability # The Online Shop is provided on an “AS IS” basis without warranties of any kind. Bay Materials does not warrant that the Online Shop will function without interruptions or error-free. Bay Materials shall not be liable for the correctness, exhaustiveness or reliability of the information or other material presented in the Online Shop nor for the content or other features of the products or services offered on or conveyed through the Online Shop. Further, Bay Materials shall not be liable for the content in the Online Shop, including without limitation the data, or any other information exchange media on or connected with the Online Shop.\nBay Materials shall not be liable for direct or indirect damages caused by a possible delay, a change or loss of a service, product or material transferred through the Online Shop. Bay Materials is not liable for direct or indirect damages caused by interruptions and disturbances including loss or delay of data or changes in data due to technical defects or maintenance. Further, Bay Materials disclaims any liability for direct or indirect damages caused to You by harmful programs (viruses, worms or the like) or incorrect content in the Online Shop. Bay Materials bears no liability for damages caused by You or by a third party.\nBay Materials’ maximum liability for direct damages caused to You or Your property is at all times limited to the amount paid by You for the Product(s) You have ordered via the Online Shop that gave reasons for the claim. Bay Materials is never liable for any indirect or unforeseeable damages caused to You at any given circumstances.\n13. Applicable law and settlement of disputes # These Terms of Service and the contractual relation related thereto shall be governed by the laws of the United States. Disputes arising out of these Terms of Service or the contractual relation related thereto will be attempted to be settled amicably. If no agreement is attained, the dispute shall be settled in the District Court of Alameda, California as the first instance.\n","date":"14 April 2026","externalUrl":null,"permalink":"/legal/terms/","section":"Legals","summary":"1. Acceptance of these Terms of Service # Zendura™ is developed and published by Bay Materials, LLC (hereinafter “Bay Materials”). All Intellectual Property Rights are owned by Bay Materials and its licensors.\n","title":"Terms of Service","type":"legal"},{"content":" About Zendura Dental # Transforming smiles through advanced materials science.\nFor over two decades, Zendura Dental has set the benchmark for high-performance thermoplastic materials used in clear aligner and retainer fabrication — engineered by polymer scientists, trusted by clinicians, and chosen by aligner manufacturers worldwide.\nOur Story # Built on polymer chemistry, born in Silicon Valley.\nZendura Dental is the brand of Bay Materials, LLC — a polymer research and development company founded in 2000 by Dr. Ray Stewart and headquartered in Fremont, California. From day one, our purpose has been singular: to engineer thermoplastic materials that raise the standard of clear aligner therapy for clinicians, manufacturers, and the patients they serve.\nToday, as a member of the Straumann Group, we serve as the group\u0026rsquo;s Center of Excellence for the development, manufacturing, and marketing of advanced thermoplastic materials for orthodontic and dental applications — combining Silicon Valley materials-science depth with global reach.\nFounded Headquarters Parent 2000, by Dr. Ray Stewart, PhD Fremont, California — Silicon Valley, USA Straumann Group — Center of Excellence for orthodontic thermoplastics Specialty: Thermoplastic materials for clear aligners, retainers \u0026amp; attachment templates.\nOur Science # R\u0026amp;D is the engine behind every Zendura material.\nWith over 30 years of expertise in polymer chemistry applied to clear aligner and retainer therapy, our R\u0026amp;D group custom-designs every Zendura material from the molecular level up — engineering the specific mechanical properties, optical clarity, and patient-wear characteristics demanded by modern orthodontic treatment.\nCustom polymer design # Every Zendura material is engineered from the molecular level for a specific clinical application — balancing force, comfort, clarity, and durability rather than compromising between them.\nPatented innovations # Our portfolio is protected by multiple US patents covering proprietary thermoplastic constructions, including the dual-shell architecture that powers our flagship Zendura FLX aligner material.\n30+ years of expertise # Our materials scientists bring decades of combined experience in polymer chemistry and orthodontic applications — a depth of knowledge that few companies in dental thermoplastics can match.\nAt the forefront of innovation # From the first medical-grade polyurethane retainer material to the industry\u0026rsquo;s first dual-shell aligner construction, Zendura has consistently led the way in advanced thermoplastic development.\nBy the Numbers # 2000 30+ 5 20+ Founded in Silicon Valley Years of materials science expertise Flagship Zendura® materials Countries with authorized distributors Our Materials # A portfolio engineered for every stage of clear aligner therapy.\nFrom the established gold standard for clear retainers to the patented dual-shell aligner material engineered for force and comfort, our materials support clinicians and manufacturers across the full treatment journey.\nZendura A — Clear Retainer Material # The established gold standard for clear retainers — engineered for endurance and built for strength. Learn more\nZendura FLX — Clear Aligner Material # The first dual-shell aligner material — engineered for comfort and performance. Learn more\nZendura VIVA — Clear Aligner Material # Unmatched force. Uncompromised comfort. A versatile material loved by clinicians. Learn more\nZendura AT \u0026amp; TRAK — Attachment Template Materials # Two templates. One smart choice. Materials designed to support effective aligner therapy. Learn more\nZendura GUARD - Premium Clear Retainer # Engineered for everyday retainer performance - a tri-layer alternative to conventional PET-G. Only available in North America currently, other regions pending. Learn more\nGlobal Presence # Two complementary ways to access our materials.\nWhether you prefer the local expertise of a regional partner or the speed of direct online ordering, our customers can access Zendura materials wherever they need them.\nAuthorized distributor network # Local expertise and technical support, delivered through partners who know their regional markets. Our distributor network gives clinicians direct access to product specialists in their language and time zone.\nEurope Middle East Africa Latin America Asia-Pacific Find a distributor\nOnline storefront # For customers who prefer to order direct, our e-commerce storefront makes it easy to explore product specifications, compare materials, and complete a purchase in just a few clicks — with transparent pricing and fast checkout.\nDirect ordering Full catalog Easy comparison Fast checkout Shop direct.\nQuality \u0026amp; Standards # Engineered to medical-grade standards.\nFrom raw resin to finished sheet, every Zendura material is developed and produced to the standards our customers — and their patients — expect from a medical device material.\nMedical-grade polyurethane # Our flagship materials are formulated from a proprietary, medical-grade thermoplastic polyurethane (TPU) resin developed specifically for orthodontic applications.\nBPA, phthalate, gluten \u0026amp; latex free # Our materials are formulated to be free from BPA, phthalates, gluten, and latex — giving clinicians confidence for every patient, including those with sensitivities.\nPatented thermoplastic technology # Our Dual Shell Dental Appliance and Material Constructions family is protected by multiple US patents — proof of an R\u0026amp;D investment that goes far beyond off-the-shelf chemistry.\nManufactured in California, USA # Every sheet is produced at our Fremont, California facility — keeping development, testing, and manufacturing under one roof for end-to-end quality control.\nGet in touch # Find a distributor # Authorized partners across Europe, the Middle East, Africa, Latin America, and Asia-Pacific. View distributors\nTalk to our team # For sales inquiries, technical questions, partnerships, and customer support. Contact us.\n","date":"13 February 2026","externalUrl":null,"permalink":"/company/","section":"Zendura Dental","summary":"About Zendura Dental # Transforming smiles through advanced materials science.\nFor over two decades, Zendura Dental has set the benchmark for high-performance thermoplastic materials used in clear aligner and retainer fabrication — engineered by polymer scientists, trusted by clinicians, and chosen by aligner manufacturers worldwide.\n","title":"Zendura Dental","type":"page"},{"content":"Our aligner portfolio is engineered to support consistent force application enabling controlled tooth movements and a comfortable wear experience. Whether you require the dual-shell comfort of Zendura FLX or the increased sustained forces of Zendura VIVA, browse our aligner-specific materials below to compare exact physical properties, thermoforming recommendations, and SKU availability.\n","date":"27 October 2023","externalUrl":null,"permalink":"/products/aligner-materials/","section":"Products","summary":"Our aligner portfolio is engineered to support consistent force application enabling controlled tooth movements and a comfortable wear experience. Whether you require the dual-shell comfort of Zendura FLX or the increased sustained forces of Zendura VIVA, browse our aligner-specific materials below to compare exact physical properties, thermoforming recommendations, and SKU availability.\n","title":"Aligner Materials","type":"products"},{"content":"","date":"27 October 2023","externalUrl":null,"permalink":"/categories/aligners/","section":"Categories","summary":"","title":"Aligners","type":"categories"},{"content":"Everything you need to work with Zendura dental materials — from the lab bench to the patient\u0026rsquo;s chair.\nProduct brochures, instructions for use (IFUs), and safety data sheets (SDS) provide the official specifications and regulatory documentation for every material. Fabrication guidance — thermoforming parameters, trimming and finishing techniques, and a material selection guide — helps clinicians and technicians get predictable, high-quality results. For patients and practices, appliance care instructions keep Zendura aligners and retainers fresh and hygienic; and for anyone who wants the science behind the materials, our Clinical Evidence overview collects published test data, independent research, and real-world outcomes.\n","date":"27 October 2023","externalUrl":null,"permalink":"/resources/","section":"Resources","summary":"Everything you need to work with Zendura dental materials — from the lab bench to the patient’s chair.\nProduct brochures, instructions for use (IFUs), and safety data sheets (SDS) provide the official specifications and regulatory documentation for every material. Fabrication guidance — thermoforming parameters, trimming and finishing techniques, and a material selection guide — helps clinicians and technicians get predictable, high-quality results. For patients and practices, appliance care instructions keep Zendura aligners and retainers fresh and hygienic; and for anyone who wants the science behind the materials, our Clinical Evidence overview collects published test data, independent research, and real-world outcomes.\n","title":"Resources","type":"resources"},{"content":"Our template materials are purpose-built for precision during the setup and bonding phases, ensuring accurate placement of attachments with optimal physical release properties. Discover our attachment template materials below to review fabrication guidelines, material specifications, and downstream commercial availability.\n","date":"27 October 2023","externalUrl":null,"permalink":"/products/attachment-templates/","section":"Products","summary":"Our template materials are purpose-built for precision during the setup and bonding phases, ensuring accurate placement of attachments with optimal physical release properties. Discover our attachment template materials below to review fabrication guidelines, material specifications, and downstream commercial availability.\n","title":"Template Materials","type":"products"},{"content":"","date":"27 October 2023","externalUrl":null,"permalink":"/categories/templates/","section":"Categories","summary":"","title":"Templates","type":"categories"},{"content":"","externalUrl":null,"permalink":"/series/","section":"Series","summary":"","title":"Series","type":"series"},{"content":" Current Versions # ZF0010.01 Zendura A Pages.EN.pdf PDF \u0026middot; 2944 KB ZF0010.01 Zendura A Spread.EN.pdf PDF \u0026middot; 2839 KB ZF0011.01 Zendura FLX Pages.EN.pdf PDF \u0026middot; 4099 KB ZF0011.01 Zendura FLX Spread.EN.pdf PDF \u0026middot; 4169 KB ","externalUrl":null,"permalink":"/resources/brochures/","section":"Resources","summary":"Current Versions # ZF0010.01 Zendura A Pages.EN.pdf PDF · 2944 KB ZF0010.01 Zendura A Spread.EN.pdf PDF · 2839 KB ZF0011.01 Zendura FLX Pages.EN.pdf PDF · 4099 KB ZF0011.01 Zendura FLX Spread.EN.pdf PDF · 4169 KB ","title":"Zendura Material Brochures","type":"resources"},{"content":" Current Versions # Zendura A IFU PDF \u0026middot; 1082 KB Zendura AT IFU PDF \u0026middot; 1054 KB Zendura FLX IFU PDF \u0026middot; 554 KB Zendura Roll Materials IFU PDF \u0026middot; 386 KB Zendura TRAK IFU PDF \u0026middot; 545 KB Zendura VIVA IFU PDF \u0026middot; 555 KB Zendura Guard IFU PDF \u0026middot; 561 KB Prior Versions # Superseded revisions are kept here for reference. Always use the current versions above.\nSuperseded August 13, 2026 Zendura A IFU — Rev H PDF \u0026middot; 778 KB Zendura AT IFU — Rev E PDF \u0026middot; 726 KB Zendura FLX IFU — Rev F PDF \u0026middot; 678 KB Zendura Roll Materials IFU — Rev E PDF \u0026middot; 367 KB Zendura TRAK IFU — Rev F PDF \u0026middot; 618 KB Zendura VIVA IFU — Rev C PDF \u0026middot; 676 KB ","externalUrl":null,"permalink":"/resources/ifu/","section":"Resources","summary":"Current Versions # Zendura A IFU PDF · 1082 KB Zendura AT IFU PDF · 1054 KB Zendura FLX IFU PDF · 554 KB Zendura Roll Materials IFU PDF · 386 KB Zendura TRAK IFU PDF · 545 KB Zendura VIVA IFU PDF · 555 KB Zendura Guard IFU PDF · 561 KB Prior Versions # Superseded revisions are kept here for reference. Always use the current versions above.\n","title":"Zendura Material Instructions for Use","type":"resources"},{"content":" Current Versions # Zendura A SDS PDF \u0026middot; 273 KB Zendura FLX SDS PDF \u0026middot; 401 KB Zendura TRAK SDS PDF \u0026middot; 349 KB Zendura VIVA SDS PDF \u0026middot; 408 KB Zendura AT SDS PDF \u0026middot; 272 KB ","externalUrl":null,"permalink":"/resources/sds/","section":"Resources","summary":"Current Versions # Zendura A SDS PDF · 273 KB Zendura FLX SDS PDF · 401 KB Zendura TRAK SDS PDF · 349 KB Zendura VIVA SDS PDF · 408 KB Zendura AT SDS PDF · 272 KB ","title":"Zendura Materials Safety Data Sheets","type":"resources"}]