Tool for the preparation, with removal of material, of a lateral

Details Tool for the preparation, with removal of material, of a lateral Tool for the preparation, with removal of material, of a lateral

1998-01-14

1999-10-26

Lucchesi, Nicholas D.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

433165, A61C 107

Patent

active

059717580

ABSTRACT:
In a tool (1) for the preparation, with the removal of material, of a lateral cavity (K) in a tooth (Z), which tool has a tool shaft (2) of which one end is connected or can be connected with a dental handpiece (4) and of which the other end is connected or can be connected with a working body (14), the longitudinal middle axis (11b) of which working body extends approximately co-axially or axis parallel to the longitudinal middle axis (11a) of the tool shaft (2), and which working body has to both sides of a longitudinal middle plane (7) extending into its longitudinal middle axis (11b), lateral working surfaces (6) which each include an acute angle with the longitudinal middle plane (7), whereby the working surfaces (6) diverge in the direction towards the tool shaft (2), the working surfaces (6) have, at least in their longitudinal region (L3) towards the tool shaft (2), or over their entire length (L), a progressive divergence (18) relative to the middle axis (11b) of the working body (14).

REFERENCES:
patent: 2990616 (1961-07-01), Balamuth et al.
patent: 3086288 (1963-04-01), Balamuth et al.
patent: 3133351 (1964-05-01), Von Seggern
patent: 3645255 (1972-02-01), Robinson
patent: 4283175 (1981-08-01), Nash

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