Pressure forming can be useful when additional forming force is required, when working with models that are difficult to evacuate effectively or when your established production protocol is based on…
FAQ Tag: Erkopress
Is pressure forming better for deep undercuts?
Additional forming force can improve adaptation around complex anatomy, but deep undercuts can also cause the finished appliance to lock onto the model or patient. Significant undercuts should therefore be…
Does pressure forming reproduce finer detail than vacuum forming?
Pressure forming has greater available forming force and can reproduce fine model detail very effectively. High-quality dental vacuum systems can also provide excellent detail for most routine applications. The practical…
Is pressure forming better than vacuum forming?
Not necessarily. Pressure forming provides greater available forming force, but the quality of a thermoformed appliance depends on much more than pressure alone. Correct heating, model preparation, material choice, model…
How much pressure is required for dental pressure forming?
The required pressure is determined by the design of the pressure-forming machine and should follow the manufacturer’s specification. Dental pressure formers are engineered to operate at a defined working pressure…
Do I need compressed air for a dental pressure former?
Most dental pressure formers require a compressed-air supply because positive pressure is used to adapt the heated material to the model. However, some machines have their own integrated compressor. For…
Can a pressure former have a built-in compressor?
Yes. A pressure former can be designed with an integrated compressor so it does not rely on an external compressed-air supply. This can be particularly useful for smaller practices or…
What are the advantages of pressure thermoforming?
Pressure thermoforming uses compressed air to press the heated sheet onto the model and provides high available forming force. It can be useful for demanding geometries, dense or less permeable…
Does pressure forming produce a better-fitting appliance?
Not automatically. Fit depends on the accuracy of the impression, scan and model; correct sheet temperature; model geometry; material selection; forming timing and cooling. Pressure forming provides greater forming force,…
What is the difference between vacuum forming and pressure forming?
Vacuum forming uses negative pressure beneath the model to draw the heated material onto it. Pressure forming uses positive compressed air above the sheet to press it onto the model.…