Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1990-04-09
1991-01-22
Wilson, John J.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433173, A61C 1312
Patent
active
049867539
ABSTRACT:
The present invention relates to a framework for a fixed/detachable prosthesis that is assembled intraorally onto at least one abutment supported by an osseointegrated implant. The framework comprises a cast member having an upper surface for supporting an aesthetic veneer and a lower surface having a recess therein, the cast member having a fastener support located above the recess and comprising a flange and a retaining wall projecting out from an upper edge of the flange. A sleeve is supported on the abutment between the abutment and the recess in the lower surface, and a preferably flathead fastener is supported in the retaining wall for securing the cast member to the abutment. A cement composition is provided in the recess in the lower surface to insure accurate adaptation of the cast member to the abutment upon installation.
REFERENCES:
patent: 973343 (1910-10-01), Corcoran
patent: 3955280 (1976-05-01), Sneer
patent: 4086701 (1978-05-01), Kawahara et al.
patent: 4547156 (1985-10-01), Hader
Judson David H.
Wilson John J.
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