US 2006/0185169 A1 · Methods for manufacturing endodontic instruments

Abstract

Endodontic instruments having a desired cutting edge are formed, at least in part, using a cold forming process. The method of forming the endodontic instrument includes providing a blank metal thread or wire and at least one die that has a negative impression of a cutting edge. The die is pressed against the blank with sufficient force in order for the die to form an at least partially formed cutting edge in the blank. Any desired shape can be formed into the blank by selecting a die with the proper corresponding negative impression. Cold forming techniques suitable for forming endodontic instruments include roll forming, flat rolling, radial forming, cold drawing, and similar techniques. The files can be sharpened or otherwise modified before or after cold-forming using techniques such as cutting, grinding, and chemical milling.

Claims39

Dependent claims

A method of manufacturing an endodontic instrument, comprising:

(a) providing a blank comprising a deformable material;
(b) providing at least one die comprising a negative impression that corresponds to at least a partially formed cutting edge of an endodontic instrument;
and
(c) cold forming the blank using the at least one die and sufficient force to form an endodontic instrument having three or more at least partially formed cutting edges.

1 more element

Dependencies are inferred from the claim text.

Methods for manufacturing endodontic instruments

Life of this patent

Methods for manufacturing endodontic instruments

Life of this patent

Abstract

Claims39