Patent ID: 8267695
Filing Date: 2012-09-18
Classification: A61C,G09B

Abstract:
1. A tooth for a dental arch model, which is used for practice treatments, comprising an enamel portion and a dentin portion, wherein the tooth is prepared by a process comprising: molding the enamel portion and the dentin portion from pellets comprising an inorganic powder and a binder, wherein the inorganic powder of the enamel portion has a primary particle diameter of 0.1 to 1.0 μm and the inorganic powder of the dentin portion has a primary particle diameter which is greater than 1.0 and ranging up to and including 8.0 μm to obtain a mold of the enamel portion and a mold of the dentin portion, sintering the mold of the enamel portion to form a sintered body of the enamel portion and the mold of the dentin portion to form a sintered body of the dentin, and bonding between the sintered body of the enamel portion and the sintered body of the dentin portion via an adhesive layer, wherein the adhesive layer is a glass having a melting point of 700° C. to 900° C. and a thickness of 1 to 500 μm, to obtain the tooth for a dental arch model.