Dentistry – Orthodontics – Bracket
Patent
1985-05-21
1986-07-01
Wilson, John J.
Dentistry
Orthodontics
Bracket
433 9, A61C 300
Patent
active
045977399
ABSTRACT:
The present invention relates to a two piece, adjustable, orthodontic bracket system to which a flexible archwire is tied. The distortions at various points along the archwire are automatically set by specially-oriented archwire slots cut into the face of interchangeable working brackets. Maintenance or modifying of any desired tooth position during treatment is done through the use of these working brackets which are inserted and removed from their bracket support bases as case needs dictate. The dentist or orthodontist, as a result need not make bends in the wire or change bracket positions on the teeth as in prior art.
From the amount and direction of the local distortion at each bracket, tooth moving forces are derived which are of the correct magnitude and direction to achieve in time the proper orientation of the teeth.
REFERENCES:
patent: 2908974 (1959-10-01), Stifter
patent: 3423833 (1969-01-01), Pearlman
patent: 3660900 (1972-05-01), Andrews
patent: 3721005 (1973-03-01), Cohen
patent: 3922787 (1975-12-01), Fischer et al.
patent: 4139945 (1979-02-01), Di Giulio
patent: 4249897 (1981-02-01), Anderson
"IPB" Ad, Guild Arts + Crafts, Inc., 10-20-66.
Kivenson Gilbert
Wilson John J.
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