Implant for attachment of dental prostheses

Abstract

Abstract Implant intended to facilitate attachment of dental prostheses against a jaw-bone (2), including an externally threaded screw-shaped member (1), intended to be attached against a threaded hole taken up in the jaw-bone (2). In difference to previously known types of implants, the screw-shaped member (1) includes a blind hole directed from the jaw-bone (2), the first portion of which is a conically tapering portion (4), which is transformed into a internally threaded hole (3). Since the conical portion (4) adjacent to the end surface of the screw-shaped member (1) preferably is arranged with a diameter smaller than the outside diameter of the end portion, and since a cover screw with a conical head which is substantially enclosed by the conical portion (4) is utilized during the osseointegration process, the jaw-bone (2) can be permitted to enclose and encapsulate this end portion of the screw-shaped member (1) during the osseointegration process. A pillar (6) can be attached against the screw-shaped member (1), at an opposed end portion supporting a conical tubular member (7), arranged to facilitate a resilient movement in relation to the pillar (6), whereby a dental prosthesis can be attached having a restricted movement in relation to the jaw-bone (2).

Inventors

• 👤 Per Olof SÖDERBERG

Bibliographic Details