Process and apparatus for producing dental filling for restorati

Details Process and apparatus for producing dental filling for restorati Process and apparatus for producing dental filling for restorati

1992-03-06

1992-11-17

Wilson, John J.

Dentistry

Apparatus

Having gauge or guide

433 76, 433114, 433226, A61C 300

Patent

active

051638428

ABSTRACT:
Process and apparatus for producing a dental filling for restoration of a tooth crown, the dental filling being fitted to a cavity prepared in the tooth for filling the cavity. The apparatus includes a cutting device for preparing the cavity, the cutting device including a cutting element for cutting the tooth for the cavity preparation, and a cutting-element position sensor for monitoring movement of the cutting element for the cavity preparation and thereby producing a batch of outline form data representing a three-dimensional outline form of the cavity; a memory device for storing the batch of outline form data; a machining device for machining a prefabricated filling blank into the dental filling; and a control device for controlling operation of the machining device according to the batch of outline form data, so that the filling blank is machined into the dental filling having an outline form identical with the outline form of the cavity.

REFERENCES:
patent: 3218624 (1965-11-01), Zane
patent: 3861044 (1975-01-01), Swinson, Jr.
patent: 4182312 (1980-01-01), Mushabac
patent: 4411626 (1983-10-01), Becker et al.
patent: 4478580 (1984-11-01), Barrut
patent: 4575805 (1986-03-01), Moermann et al.
patent: 4837732 (1989-06-01), Brandestini et al.
patent: 4937928 (1990-07-01), van der Zel
patent: 4941826 (1990-07-01), Loran et al.
patent: 5017139 (1991-05-01), Mushabac
CAD/CAM Systems In Dentistry-A System for Automated Fabrication of Dentral Prostheses, E. Dianne Rekow, Feb.-Mar. 1987, pp. 1-14.

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