Dentistry – Orthodontics – Bracket
Patent
1992-05-06
1993-12-07
Wilson, John J.
Dentistry
Orthodontics
Bracket
433 9, A61C 300
Patent
active
052678547
ABSTRACT:
The invention discloses a metal injected molded (MIM) orthodontic bracket that includes a plurality of raised posts buccolingually extending from a tooth abutting surface. Each post includes a root section having a base integrally formed with the tooth abutting surface and a apex section buccolingually extending from the root section. The apex section terminates a sharp, continuous parameter edge that was originally, smaller in all directions than the root section. However, in accordance with the invention, further cold working of such edges occurs whereby each edge is easily worked--at ambient temperatures--into a mushroom-shaped button having a worked edge larger in all directions than its associated root section. As a result, when the bracket is attached to a wearer's tooth, the buccolingually extending surface area of the worked posts coupled with the tooth abutting surface between adjacent posts, form a modified scalloped surface that can be attached to the patient's tooth face with a substantial addition to strength of the bond securing the bracket. The side surfaces also define opposed planar gingival and lingual edges, while the end surfaces define opposed planar mesial and distal edges that are non-rhomboidal. The modified scalloped surfaces provided by the raised posts is further characterized by the formation of TEE-shaped crest sections midway between adjacent posts, such crest sections buccolingually repeating at intervals along row, columnar and lateral directions of the bracket.
REFERENCES:
patent: 4165561 (1979-08-01), Miller et al.
patent: 4369033 (1983-01-01), Webb et al.
patent: 4661059 (1987-04-01), Kanno
patent: 4819316 (1989-04-01), Rossini et al.
patent: 4826430 (1989-05-01), Chen et al.
patent: 4842513 (1989-06-01), Haarmann
patent: 5095602 (1992-03-01), Reher et al.
Lucchesi Nicholas D.
Messner Harold D.
Wilson John J.
LandOfFree
Miniature orthodontic appliance does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Miniature orthodontic appliance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Miniature orthodontic appliance will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2012469