Dentistry – Orthodontics – Bracket
Patent
1991-11-25
1993-08-24
O'Connor, Cary E.
Dentistry
Orthodontics
Bracket
A61C 300
Patent
active
052384039
ABSTRACT:
An improved orthodontic appliance of the twin bracket edgewise type in which a pair of spaced apart brackets are affixed to a pad member adapted for attachment to the surface of a tooth, each of the brackets including a base portion resting against the pad member, upper and lower wing portions projecting outwardly from the base portion and an outwardly opening slot of predetermined height between the upper and lower wing portions for receiving an arch wire in cooperation therewith, the height of the arch wire receiving slot of one of the brackets being greater than the arch wire receiving slot of the other.
REFERENCES:
patent: 4531911 (1985-07-01), Creekmore
patent: 4793804 (1988-12-01), Schudy
patent: 4799882 (1989-01-01), Kesling
Berryhill Bill B.
O'Connor Cary E.
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