Dentistry – Apparatus – Broach
Patent
1996-07-24
1998-09-15
Lewis, Ralph A.
Dentistry
Apparatus
Broach
408226, 76 14, A61C 302
Patent
active
058071067
ABSTRACT:
A method of fabricating an endodontic instrument having depth indicating calibrations formed between the handle and the fluted tapered end portion, and wherein the calibrations are formed by a cold rolling operation. The rolled calibrations do not form fracture points, they may be rapidly and inexpensively formed, and they have a smooth surface finish. Further, the rolled calibrations provide a sufficient physical indentation to be readily visible on x-ray photographs.
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