Dental implant abutment screw lock

Details Dental implant abutment screw lock Dental implant abutment screw lock

1997-02-12

1998-01-06

Wilson, John J.

Dentistry

Prosthodontics

Holding or positioning denture in mouth

433172, A61C 800

Patent

active

057047880

ABSTRACT:
A dental implant is formed of an implant fixture for installation in the jawbone, an abutment secured non-rotationally to the implant fixture by interengaging connector components, and a coping screw removably securing the implant fixture and abutment together. To prevent unintended loosening of the coping screw, the non-circular shank of a locking member is inserted in a correspondingly shaped bore in the coping screw and laterally extending locking keys on the head of the locking member are captured in longitudinal grooves in the abutment, whereby the coping screw is secured positively against loosening.

REFERENCES:
patent: 5015186 (1991-05-01), Detsch
patent: 5049073 (1991-09-01), Lauks
patent: 5100323 (1992-03-01), Friedman et al.
patent: 5106300 (1992-04-01), Voitik
patent: 5108288 (1992-04-01), Perry
patent: 5125840 (1992-06-01), Durr et al.
patent: 5169308 (1992-12-01), Kvist
patent: 5302127 (1994-04-01), Crisio
patent: 5312253 (1994-05-01), Chalifoux
patent: 5336090 (1994-08-01), Wilson, Jr. et al.
patent: 5350300 (1994-09-01), Gallais
patent: 5527182 (1996-06-01), Willoughby

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