Dentistry – Apparatus – Hand manipulatable implement
Patent
1994-01-28
1995-05-02
O'Connor, Cary E.
Dentistry
Apparatus
Hand manipulatable implement
433215, A61C 300
Patent
active
054113962
ABSTRACT:
A prosthesis which is affixed to at least one tooth can be extracted from the mouth of a patient by an implement employing two discrete substantially disc-shaped jaws which are to be bonded to spaced-apart portions of the external surface of the prosthesis by a rapidly setting adhesive. The jaws are permanently or separably connected to spaced-apart portions of an endless cable or to the end portions of a cable of finite length, and the cable is engaged by a follower of a tool which is used by a dentist to pull the cable and to thus detach the prosthesis from the at least one tooth. The adhesive can be polymerizable in response to exposure to light (such as ultraviolet light) which is transmitted thereto through the jaws by an optical conductor. The jaws are deformed or can be deformed so that one side of each jaw, which confronts a portion of the external surface of the prosthesis to be extracted, has an outline at least substantially conforming to the outline of the respective portion of the external surface.
REFERENCES:
patent: 4417876 (1983-11-01), Lynch
patent: 4749352 (1988-06-01), Nicholson
patent: 5197877 (1993-03-01), Andrew
patent: 5197878 (1993-03-01), Lukase et al.
ATD S.A.R.L.
O'Connor Cary E.
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