ENGINEERED FOR COMFORT & PERFORMANCE.#
THE FIRST DUAL-SHELL MATERIAL FOR CLEAR ALIGNERS
Zendura 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.
DESIGNED TO DELIVER CONSISTENT FORCES WHILE ENHANCING PATIENT COMFORT2#
- Up to 150% improved force retention compared to monolayer materials
- 40% lower initial force**
- High crack resistance based on tear strength data
- Ultra-clarity* (99%)
DUAL SHELLS#
Two thin outer layer provide rigidity and force, while the inner elastomeric layer aids in patient comfort and flexibility.
ELASTOMERIC MIDDLE LAYER
RESULT: ENGINEERED FOR PATIENT COMFORT AND CONSISTENT FORCE DELIVERY.
Product 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 & MiniStar are registered trademarks of Scheu. Drufomat is registered trademark of Dreve. Erkopress is registered trademark of Erkodent.
Contact Information#
Global HQ BayMaterials 48450 Lakeview Blvd. Fremont, CA 94538 +1 650.566.0800 info@zenduradental.com
- North America: orders@baymaterials.com | Tel: +1 650 566 0800
- Europe, Middle-East & 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
- ZENDURA 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:
- 64% 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.
Force: 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.
Elastic Recovery (24h) | 37ºC | Water*#
- ZENDURA FLX: 82%
- Essix ACE: 48%
- Taglus PU Flex: 28%
- CA Pro: 21%
- Duran: 16%
Footnotes & Trademarks#
** Compared to tested materials. * Bench top data.
CA Pro & Duran are trademarks of Scheu-Dental GMBH. MaxFlex is a trademark of Shanghai MaxFlex Technology. Essix is a trademark of Dentsply Sirona. Taglus is a trademark of Laxmi Dental. GT Flex a is trademark of GoodFit Technologies, LLC.
Effective 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. ↩︎
The 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". 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 ↩︎ ↩︎
