MOLD WITH WEAKENED REGION

Abstract: a mold is for thermoforming a dental appliance. the mold includes a first section of the mold and a second section of the mold. the second section includes a feature having a complex shape, an undercut, or a bite edge. the mold further includes a weakened region that joins the first section to the second section. the weakened region is breakable, deflectable, or deformable in response to a first threshold force to enable the first section and the second section to be removed from the dental appliance after the dental appliance is formed over the mold. the first threshold force is less than a second threshold force that would damage or permanently deform the dental appliance.

Inventor(s): Peter Webber, Rohit Tanugula, Shiva P. Sambu, Crystal Tjhia

CPC Classification: A61C9/00 (Impression cups, {i.e. impression trays}; Impression methods {(computer-assisted sizing ; instruments for determining occlusion )})

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