Patent ID: 8782897

Claim:
A method for manufacturing a dental implant including an abutment, wherein the abutment is manufactured through the steps comprising: molding a titanium molded body composition containing powder composed of titanium or titanium alloy and a binder to obtain a titanium molded body having a protrusion; molding a ceramic molded body composition containing powder composed of oxide-based ceramic and a binder to obtain a ceramic molded body having a recess, wherein the recess of the ceramic molded body has a size lager than that of the protrusion of the titanium molded body; assembling the titanium molded body and the ceramic molded body together to obtain an assembled body, wherein the assembled body is assembled by inserting the protrusion of the titanium molded body into the recess of the ceramic molded body so that a clearance is created therebetween; degreasing the assembled body so that the binder contained in the titanium molded body and the binder contained in the ceramic molded body are removed therefrom to transform the titanium molded body into a titanium degreased body and to transform the ceramic molded body into a ceramic degreased body; and sintering the assembled body thus degreased to transform the titanium degreased body into a titanium member as a sintered body and to transform the ceramic degreased body into a ceramic member as a sintered body so that the titanium member and the ceramic member are firmly fixed and joined together, wherein in the degreasing step and the sintering step, the ceramic molded body contracts to a greater degree than the titanium molded body so that the clearance is eliminated, thereby bringing the protrusion of the titanium member into close contact with, and filling, the recess of the ceramic member.