Drill assembly for preparing a prosthetic crown-receiving tooth

Details Drill assembly for preparing a prosthetic crown-receiving tooth Drill assembly for preparing a prosthetic crown-receiving tooth

Category

A - Human Necessities

Subcategory

61

Subsubcategory

C

IPC codes

A61C 3/02 (2006.01)

Type

Patent

Patent number

CA 2379073

Description

The invention concerns a drill assembly for preparing a prosthetic crown-receiving tooth, wherein said drills (1) are of the type comprising an active part and at least an inactive part. Each of the drills (1) comprises a distal end (12) shaped like a sphere portion having an inactive part (13) and an active part (11), one of which consists of a spherical cap in apical position with a small circle (14) having a radius much smaller than its bending radius.

Ensemble de fraises destiné à la préparation d'une dent en vue de la pose d'une couronne prothétique, où lesdites fraises (1) sont du type comportant une partie active et au moins une partie inactive. Chacune des fraises (1) comporte une extrémité distale (12) en forme de portion de sphère qui présente une partie inactive (13) et une partie active (11), dont l'une consiste en une calotte sphérique en position apicale présentant un petit cercle (14) de rayon très inférieur à son rayon de courbure.

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