Artificial tooth and manufacturing method therefor
An artificial tooth includes a prosthesis and an abutment including an insertion part inserted into the prosthesis in one direction and a protruding part protruding from the prosthesis, wherein the insertion part is slantingly formed so that the diameter of the outer peripheral surface of the insertion part increases in the one direction, and the protruding part is slantingly formed so that the diameter of the outer peripheral surface of the protruding part decreases in the one direction, and when the prosthesis is a workpiece structure, one end portion of the protruding part is coupled to an artificial tooth processing device.
1 . An artificial tooth comprising:
a prosthesis;
an abutment comprising an insertion part inserted into the prosthesis in one direction and a protruding part protruding from the prosthesis; and
a buffer part which is located to cover an outer peripheral surface of the insertion part and comprises zirconia, the buffer part being entirely embedded within the prosthesis and positioned at an interface between the insertion part and the prosthesis,
wherein the insertion part is slantingly formed so that a diameter of the outer peripheral surface of the insertion part increases in the one direction, and the protruding part is slantingly formed so that a diameter of an outer peripheral surface of the protruding part decreases in the one direction, and when the prosthesis is a workpiece structure, one end portion of the protruding part is coupled to an artificial tooth processing device, and
wherein the prosthesis comprises at least one of crystallized glass, polymers, or ceramics, and the abutment comprises at least one of a titanium material, a chrome material, a cobalt material, platinum, gold, or an alloy thereof.
2 . The artificial tooth of claim 1 , wherein the prosthesis comprises a through hole passing through an inside of the prosthesis in the one direction.
3 . The artificial tooth of claim 2 , further comprising a connection part passing through an inside of the abutment, wherein the abutment has a seating hole in which a first side of the connection part is seated, and an insertion hole which is smaller in a diameter than the seating hole and through which a second side of the connection part passes.
4 . The artificial tooth of claim 3 , wherein when the prosthesis is a tooth-shaped crown, the one end portion of the protruding part is coupled to a fixture implanted in an alveolar bone.
5 . The artificial tooth of claim 1 , wherein the workpiece structure has a cylindrical shape.
6 . A manufacturing method of the artificial tooth of claim 1 , the method comprising:
providing the workpiece structure provided with the abutment;
coupling one side of the abutment to the artificial tooth processing device;
processing the workpiece structure into a tooth-shaped crown by the artificial tooth processing device;
separating the abutment from the artificial tooth processing device; and
coupling the tooth-shaped crown formed integrally with the abutment to a fixture implanted in an alveolar bone.