Implant for fixing dental prostheses
Implant for fixing dental prostheses
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United States Patent 6659770
Publication Date: December 9, 2003
Assignee:
Application Number: 949618
Filing Date: September 12, 2001
Abstract: An improved implant for fixing dental prostheses, of the type constituted by an intrabony section that is fixed, upon assembly, within the gum, and to which a dental prosthesis anchoring superstructure is fixed; the superstructure is constituted by an abutment provided with an axial through hole that is partially accommodated in a seat formed in the intrabony section and suitable to provide the support around which the tooth is constituted, and an abutment fixing pin that is inserted axially in the abutment and is provided with a threaded portion that is associated, upon assembly, with a threaded blind hole formed axially in the bottom of the seat. The seat has a portion provided with a triangular cross-section with radiused vertices and coupled, upon assembly, to a complementarily shaped portion of a shank formed in the abutment element. The seat and the shank are complementarily shaped and provided with a circular cross-section in their remaining parts as well.
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