The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 1992
Filed:
Dec. 27, 1990
Applicant:
Inventors:
Assignee:
Furukawa Electric Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
433 24 ; 433 20 ;
Abstract
A process for straightening teeth using super-elastic NiTi arch wires of the same diameter but having different recovery forces is carried out by using NiTi wires that have a transition temperature below body temperature with brackets on the teeth. The different recovery force is set for each wire by heat treating the wires at different temperatures and/or for different periods of time. In this manner the forces applied to the teeth can be changed while still using arch wires of the same diameter.