Patent ID: 6743018
Filing Date: 2004-06-01
Classification: A61C

Abstract:
A fastener assembly for mounting together components of a dental restoration comprisinga fastener member having a head and an elongated body formed about an axis through said head extending to a distal end having a first portion of diameter D extending from said distal end toward said head, said first portion being threaded externally from said end throughout at least part of its overall length, a second portion of cylindrical outline of diameter D1 (wherein D1a shoulder at the juncture of said first and second portions, and a sleeve member formed of resilient material mounted on said elongated body within and along said second portion, said sleeve member having an inner surface, an outer surface, an axial length in relaxed condition substantially equal to the length of said second portion, a slit through both said surfaces from end-to-end creating opposed, spaced-apart, confronting surfaces throughout said length, and opposite end surfaces each defining a substantially continuous ring having an inner diameter S1 (wherein S1>D1 andD) so that at least a portion of an end surface of said sleeve member in mounted location is retained against said shoulder, and means providing a surface for retaining at least a portion of the opposite end surface of said sleeve member, said retaining means spaced from said shoulder defining the length of said second portion.