Patent ID: 8397791
Filing Date: 2013-03-19
Classification: A61C

Abstract:
1. A mold for molding a green body of a zirconium oxide dental implant 5 , including at least: a first molding part, having a first imprinting inner surface for forming a first external thread section of the green body, and two none-thread inner surfaces oppositely formed beside the first imprinting inner surface for forming a half portion of a first none-thread section and a second none-thread section of the green body respectively; a second molding part, having a second imprinting inner surface for forming the second external thread section of the green body, and two none-thread inner surfaces oppositely formed beside the second imprinting inner surface for forming another half portion of the first none-thread section and the second none-thread section of the green body respectively; a driving mechanism; a polygonal conical slider may be pushed toward the mold cavity for forming a polygonal tapering section of the green body, and biased by a resilient element to leave the mold cavity without performing rotation; and a screw thread forming rod having a screw head portion coaxially penetrated the polygonal conical slider for forming a internal thread of the green body, a shoulder portion for abutting and pushing the polygonal conical slider toward the mold cavity, and one end driven by the driving mechanism to move axially a pitch in every rotation, wherein the first molding part and the second molding part have an interface for closing with each other and forming a mold cavity, and the none-thread inner surfaces are matched edge-to-edge on the interface thereby forming the first none-thread section and the section and the second none-thread section of the green body when a zirconium oxide paste is injected in the mold cavity.