Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1991-10-24
1992-09-08
O'Connor, Cary E.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433174, A61C 800
Patent
active
051453720
ABSTRACT:
A system and method is provided for implanting tooth analogues in the jawbone resulting in aesthetically and functionally desirable gingival tissue contours after restoration. The system permits modification and adaptation of the tooth analogue to meet intraoral demands in a manner similar to that used in the preparation and restoration of natural teeth. The system comprises a standard fixture and cover screw passed through opened gingival tissue and implanted in the jawbone. After the osseointegration of the fixture, the gingiva is reopened and the cover screw is removed, and a healing cap having a predetermined contour is attached to the fixture. The reopened gingiva re-heals in a shape determined by the contour of the healing cap. The healing cap may have two separable reinforced portions so that one lower portion around which gingiva tissue regrows may remain in the patient while only the other upper portion is removed and replaced by a reinforced abutment having an emergence profile matching that of the reinforced healing cap. An immediate snug fit between the gingival tissues and the reinforced abutment is thereby provided at the time of connection of the reinforced abutment to the fixture, and a crown can be removably attached to the reinforced abutment by a screw extending through the side of the crown into the reinforced abutment.
REFERENCES:
patent: 4758160 (1988-07-01), Ismail
patent: 4780080 (1988-10-01), Haris
patent: 4856994 (1989-08-01), Lazzara et al.
patent: 5033962 (1991-07-01), Scatena
Daftary Fereidoun
Preston Jack D.
O'Connor Cary E.
Rozsa Thomas I.
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