Use finishing and polishing tools designed for thermoplastic dental materials and work with light pressure to avoid generating heat. PETG can soften or smear if it becomes too hot. Progress…
FAQ Tag: PETG
Why are there bubbles in my thermoformed sheet?
Overheating, absorbed moisture and contamination are common causes of bubbling. Confirm that the material has been stored correctly and that the selected heating program matches the sheet type and thickness.…
What temperature should dental thermoforming material be heated to?
There is no universal temperature for all dental thermoforming materials. PETG, EVA, TPU and multilayer sheets have different forming ranges, and thickness also affects the heating cycle. Use the program…
Why do bubbles appear in thermoforming material?
Bubbles can be caused by overheating, moisture in moisture-sensitive materials, contamination or unsuitable storage. Repeated bubbling should prompt a review of the material’s storage conditions and the heating program. Do…
Does moisture cause bubbles during thermoforming?
It can with some thermoplastics. Moisture absorbed during storage may turn to vapour when the sheet is heated and create bubbles or surface defects. Store materials according to the manufacturer’s…
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 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,…