Endodontic filing tool

Details Endodontic filing tool Endodontic filing tool

1990-06-21

1992-02-25

Wilson, John J.

Dentistry

Apparatus

Broach

433128, A61C 502, A61C 114

Patent

active

050909053

ABSTRACT:
An endodontic filing tool which can be chucked into a dental tool holder with slight play but secured against rotating movement as well as against axial movement by chucking balls. A circumferential groove is provided at the rearward end of the tool shaft, wherein the circumferential groove is interrupted at at least one location, so that a stop for the chucking ball is formed.

REFERENCES:
patent: 2715772 (1955-08-01), Fritz
patent: 4019254 (1977-04-01), Malmin
patent: 4940410 (1990-07-01), Apap et al.
patent: 5028181 (1991-07-01), Jenkins et al.

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