Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1990-01-02
1991-03-19
Stone, Cary E.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
A61C 800
Patent
active
050006860
ABSTRACT:
A dental implant fixture of cylindrical cross-section has a diameter limited to not more than about 3 mm., for use in narrow jawbone ridges. The diameter of the fixture is smaller at its apical end than at its gingival end. Screw threads on the outer surface of the fixture are peak-limited to the locus of a cylinder of uniform diameter that is larger than the diameter of the fixture at its apical end.
REFERENCES:
patent: 4626214 (1986-12-01), Artal
patent: 4668191 (1987-05-01), Plischka
patent: 4863383 (1989-09-01), Grafelmann
Beaty Keith D.
Lazzara Richard J.
Implant Innovations, Inc.
Rosen Alfred H.
Stone Cary E.
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