For conventional hard adjustable splints, a tough rigid material such as Erkodur is commonly used because the occlusal surface can be accurately adjusted. Where greater comfort is required, Erkoloc-pro combines…
FAQ Category: Choosing Thermoforming Materials
Which thermoforming material is best for retainers?
A clear, tough material with good dimensional stability is normally preferred for retainers. Erkodur is widely used for conventional clear retainers. Erkodur-al provides a somewhat more flexible alternative, while Erkoloc-pro…
Which thermoforming material is best for clear aligners?
Aligner material should provide a controlled balance of stiffness, flexibility, elastic recovery, clarity and resistance to cracking. Erkodur-al has been developed specifically for aligner production and is less rigid than…
What types of plastic are used for dental thermoforming?
Common dental thermoforming polymers include PETG and related copolyesters, EVA, TPU and polyethylene. Different materials provide different combinations of hardness, flexibility, transparency, elasticity and durability. PETG is commonly used for…
What is PETG dental thermoforming material?
PETG is a transparent, tough thermoplastic commonly used for rigid dental appliances such as retainers, occlusal splints and some aligner workflows. It has good clarity and dimensional stability while remaining…
What is EVA dental thermoforming material?
EVA is a flexible, resilient thermoplastic widely used for sports mouthguards and other soft dental appliances. Its elasticity and impact-absorbing properties make it particularly useful where cushioning and flexibility are…
What is TPU used for in dental thermoforming?
TPU is a flexible and elastic thermoplastic polyurethane used where softness and resilience are required. It may be used as a soft appliance material or as one layer in a…
What is the difference between PETG and EVA?
PETG is relatively rigid and dimensionally stable, so it is commonly used for retainers, hard splints and other appliances where shape stability is important. EVA is softer and more elastic,…
What is the difference between hard and soft thermoforming material?
Hard thermoforming materials provide greater rigidity, shape stability and the ability to maintain a defined occlusal surface. Soft materials provide flexibility, cushioning and easier engagement of undercuts. Some appliances benefit…
What is a multilayer dental thermoforming material?
A multilayer thermoforming material combines two or more layers with different properties in one sheet. This allows a single appliance to provide, for example, a softer tooth-facing surface and a…