Torqued titanium-based archwire

Details Torqued titanium-based archwire Torqued titanium-based archwire

1996-02-23

1998-03-03

Lewis, Ralph

Dentistry

Orthodontics

Means to transmit or apply force to tooth

A61C 300

Patent

active

057228272

ABSTRACT:
A torqued archwire for use in an edgewise orthodontic bracket system. The archwire is substantially rectangular in cross-section, is made of titanium-based alloy and has a plurality of segments, including an anterior segment which is sized to cooperate with brackets attached to a person's central and lateral teeth. Torque is built into this anterior segment, being maximized at the centerpoint and adjacent the central teeth brackets and then decreasing continuously along the remaining length of the segment. Extending from the respective ends of the anterior segment are a pair of transition segments, in which the torque built into the archwire diminishes to zero. The lengths of the transition segments are such that these "zero" points occur, in use, between the corresponding adjacent lateral and cuspid brackets. Posterior segments of the archwire, which extend distally from the transition segments, generally include no built-in torque. For ease of reference by an orthodontist, the "active" anterior and transition segments of the archwire are colored with non-toxic ink.

REFERENCES:
patent: 4037324 (1977-07-01), Andreasen
patent: 4818226 (1989-04-01), Berendt et al.
patent: 5017133 (1991-05-01), Miura
patent: 5137446 (1992-08-01), Yamauchi et al.
patent: 5259760 (1993-11-01), Orikasa
patent: 5464347 (1995-11-01), Allesee
Highland Metals brochure which has entries on high torque NiTi arches (date uncertain, but prior to Feb. 28, 1994).
3M Unitek Catalog No. 16-851 9312, p. 5-13 which has entries on permachrome Henry Ideal Arches and permachrome Pretorqued, Preformed Edgewise Archwires (date uncertain, but believed to be Dec. 1993 due to "9312" designator in catalog number).
TP Orthodontics, Inc. 1995 Catalog, p. 85 which has an entry on stainless steel pretorqued archwire.

Affiliated with

Also associated with

Rating

Torqued titanium-based archwire does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Torqued titanium-based archwire, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torqued titanium-based archwire will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2243668