Invention Grant
- Patent Title: Endodontic instrument for drilling the root canals of a tooth
-
Application No.: US14930844Application Date: 2015-11-03
-
Publication No.: US09931179B2Publication Date: 2018-04-03
- Inventor: Jean-Claude Rouiller
- Applicant: FKG DENTAIRE S.A.
- Applicant Address: CH La Chaux-de-Fonds
- Assignee: FKG DENTAIRE S.A.
- Current Assignee: FKG DENTAIRE S.A.
- Current Assignee Address: CH La Chaux-de-Fonds
- Agency: Davis & Bujold PLLC
- Agent Michael J. Bujold
- Priority: CH2100/10 20101216
- Main IPC: A61C5/02
- IPC: A61C5/02 ; A61C5/42 ; C22C19/03 ; C22F1/10

Abstract:
A method of forming a dental tool or instrument having a memorized shape. The method comprises selecting a nitinol wire having an initial transition temperature below room temperature; grinding the nitinol wire to form the dental tool or instrument so as to have a shank, located adjacent a first end, and a working area, with at least one cutting edge, located adjacent an opposite second leading end; molding the working area into a molded shape having at least one protrusion formed therein; heating the dental tool or instrument to both: a) alter the initial transition temperature of the dental tool or instrument to a final transition temperature, and b) memorize the Molded shape including the at least one protrusion so that the dental tool or instrument will automatically return to the molded shape having the at least one protrusion when at a temperature at or above the final transition temperature.
Public/Granted literature
- US20160051339A1 ENDODONTIC INSTRUMENT FOR DRILLING THE ROOT CANALS OF A TOOTH Public/Granted day:2016-02-25
Information query