Handheld grinding device for crown preparation

Details Handheld grinding device for crown preparation Handheld grinding device for crown preparation

1985-12-19

1987-10-20

Wilson, John J.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

433142, A61C 116

Patent

active

047011289

ABSTRACT:
A handheld dental tool for crown preparation, comprises a handle, a grinding burr, and a guard attached to the handle. The guard has a tip solid spherical closely spaced from the tip of the grinding burr such as to be receivable between the tooth to be prepared and the free gingival tissue thereat to protect the gingival tissue during the grinding of the tooth.

REFERENCES:
patent: 319237 (1885-06-01), Grout
patent: 635244 (1899-10-01), Gholson
patent: 1093865 (1914-04-01), Lauderdale
patent: 2176339 (1939-10-01), Henneman
patent: 2287260 (1942-06-01), Luck
patent: 2429356 (1947-10-01), Hicks
patent: 3786566 (1974-01-01), Jelicic et al.

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