Patent ID: 6474991
Filing Date: 2002-11-05
Classification: A61C

Abstract:
A dental implant system comprising:(a) a fixture (301;401;501) capable of being implanted in bone tissue (312, 314; 512, 514) of the maxilla or mandible by displacement of the fixture in a forward direction in the maxilla or mandible, the fixture comprising: a forward end, a rearward end providing a female recess having a rearward opening and a boundary wall (330; 430; 530), and an outer surface (305; 405; 505) which extends between the forward and rearward ends and which forwardly of a predetermined position (307; 407; 507) on the outer surface is adapted for interlocking with bone tissue of the maxilla or mandible, said boundary wall of the female recess extending forwardly from said recess opening and beyond said predetermined position; and (b) a superstructure (402) capable of being securably mounted on the fixture, the superstructure comprising: a forward end providing a male projection having a boundary wall wherein, (i) said boundary wall of the female recess of the fixture and said boundary wall of the projection of the superstructure each present a predetermined interfacing surface capable of interfacing with each other, each of said interfacing surfaces being disposed forwardly of the predetermined position, and each of said interfacing surfaces being presented by a predetermined forward section of the respective boundary wall and having a substantially conical profile with flank surfaces which converge in the forward direction at a substantially common angle, and (ii) the boundary wall of the projection of the superstructure and the boundary wall of the female recess of the fixture are sized and configured to be spaced-apart from each other rearward from where the predetermined forward sections interface.