Dentistry – Orthodontics – Bracket
Patent
1992-01-27
1993-09-07
Mancene, Gene
Dentistry
Orthodontics
Bracket
433 10, A61C 300
Patent
active
052422992
ABSTRACT:
A dental orthodontic bracket is made from a body of a ceramic, a polymer or a composite thereof, the body having a longitudinal slot for an archwire formed by opposed upstanding wall portions on a base. The wall portions each have a pair of lateral wings at opposite end portions of the slot and an intermediate portion joining the wings. The wings have convex outer surfaces smoothly joined with a concave outer surface of the intermediate portion thereby forming a sinusoidal outline. The bottom surfaces of the wings form a clearance space with the base for a ligature wire clamp. The bottom of the slot is located above the bottom surfaces of the wings and the lowest point of the wings is at their tips. The upper surface of the wings is convex and the bottom surface concave.
REFERENCES:
patent: 3423833 (1969-01-01), Pearlman
patent: 4310306 (1982-01-01), Wallshein
patent: 4322206 (1982-03-01), Reynolds
patent: 4799882 (1989-01-01), Kesling
patent: 4936773 (1990-06-01), Kawaguchi
patent: 5044945 (1991-09-01), Peterson
patent: 5078596 (1992-01-01), Carberry et al.
patent: 5160261 (1992-11-01), Peterson
Hoya Corporation
Lucchesi Nicholas D.
Mancene Gene
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