Abutment for dental appliances and the like

Details Abutment for dental appliances and the like Abutment for dental appliances and the like

1990-12-10

1992-12-08

Wilson, John J.

Dentistry

Prosthodontics

Holding or positioning denture in mouth

433173, A61C 800

Patent

active

051693097

ABSTRACT:
An abutment and method of its use are disclosed for securing dental appliances of other physiological appliances having a wide variety of confugurations to an implant mounted in a bony substrate, the abutment including an indexing element means forming an abutment surface surrounding the indexing element and separate threaded attachment for the appliance, either integrally with the implant or on an abutment attachable to the implant, the indexing element being formed with a cylindrical taper extending outwardly from the abutment surface and one or more, preferably six, planar facets intersecting the tapered surface adjacent the abutment surface but with portions of the tapered surface intermediate the facets extending substantially toward the abutment surface. The tapered surface is preferably in the range of about ten to thirty degrees, more preferably about thirteen to seventeen degrees, relative to an axis of the indexing element, the overall axial length of the indexing element preferably being at least about 0.020 inches, more preferably in the range of about 0.030-0.100 inches.

REFERENCES:
patent: 3656236 (1972-04-01), Kurer
patent: 3905109 (1975-09-01), Cohen et al.
patent: 4016651 (1977-04-01), Kawahara et al.
patent: 4872839 (1989-10-01), Brajnovic

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