Orthodontic bracket

Details Orthodontic bracket Orthodontic bracket

2005-09-13

2005-09-13

Bumgarner, Melba (Department: 3732)

Dentistry

Orthodontics

Bracket

Reexamination Certificate

active

06942483

ABSTRACT:
A bracket for orthodontic treatments comprises a closing spring, which is fixedly anchored at the bracket and which covers an arch wire slot formed in the bracket for receiving an arch wire in a closed position. In an end section of the closing spring covering the slot, a tongue is formed in the center and folded at an angle toward a base plate of the bracket. The spring has an end section which is held by projections formed at the bracket structure to secure the spring in its closed position. The spring may be dimensioned and pre-tensioned in a manner that an arch wire inserted into the slot is torqued by the closing spring with forces from the top and from the side.

REFERENCES:
patent: 4023274 (1977-05-01), Wallshein
patent: 4144642 (1979-03-01), Wallshein
patent: 4492573 (1985-01-01), Hanson
patent: 4712999 (1987-12-01), Rosenberg
patent: 5562444 (1996-10-01), Heiser et al.
patent: 5711666 (1998-01-01), Hanson

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