Institut Straumann Ag

Alex Sch&auml;r

Ulrich Mundwiler

Vincenzo Grande

The invention relates to a connection between a known dental implant ( ) and a straight or angular abutment ( ) which can be established by means of a base screw ( ) and a support ring ( ). The support ring ( ) is fixedly introduced into the inlet of the abutment ( ) near the lower edge of same, preferably by welding or by bending over of the lower edge of the abutment ( ). Before insertion of the support ring ( ) the base screw ( ) is introduced head first into the inlet ( ) from the side of the root part of the abutment. The base screw is held in the abutment ( ) by the support ring ( ) on which the base screw ( ) rests. The threaded shank ( ) of the base screw ( ) engages the inner thread ( ) provided for in the implant ( ) and draws the abutment ( ) into the receiving hole ( ) of the implant ( ). An angled surface of the base screw ( ) and a beveled surface of the support ring ( ) contact each other so that the welding seam or bent over lower edge of the abutment ( ) are relieved of axial stress. The above connection system is designed especially for implants ( ) with a conical receiving hole ( ) and internal polygon as well as abutments ( ) having a complementary external conical shape and external polygon.

Growing community of inventors

Riehen, Switzerland

Alex Schär

Growing community of inventors

Riehen, Switzerland

Alex Sch&auml;r

Alex Schär