Dentistry – Orthodontics – By mouthpiece-type retainer
Patent
1991-06-17
1992-03-17
O'Connor, Cary E.
Dentistry
Orthodontics
By mouthpiece-type retainer
A61C 300
Patent
active
050964160
ABSTRACT:
An orthodontic appliance of the type normally referred to as a retainer for retention of teeth moved during a period of orthodontic treatment, wherein the retainer is made of acrylic sections or plates interconnected by resilient wire where at least one posterior lingual section is flexible relative to the anterior section to aid in the fabrication and placement of the appliance.
REFERENCES:
patent: 3849885 (1974-11-01), Robins
patent: 4224021 (1980-09-01), Foxman
patent: 4253828 (1981-03-01), Coles et al.
patent: 4299568 (1981-11-01), Crowley
patent: 4516936 (1985-05-01), Hulsink
TP Catalog 908, 1987, pp. 137-138.
Straight-Talk, vol. 19, No. 4, Jan.-Feb. 1989, p. 4 (TP Orthodontics).
O'Connor Cary E.
TP Orthodontics Inc.
Zickert Lloyd L.
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