Orthodontic appliance

Details Orthodontic appliance Orthodontic appliance

1995-11-29

1998-06-09

Wilson, John J.

Dentistry

Orthodontics

Bracket

433 8, A61C 300

Patent

active

057624925

ABSTRACT:
An orthodontic appliance includes a configuration which makes it difficult for dental plaque to be deposited thereon and which prevents lateral movement of an arch wire as well as precisely preforming a torque shift without an auxiliary attachment wire. The orthodontic appliance is used in dental treatment includes a bracket having an arch wire passage formed therein to extend substantially horizontally and a lock pin insertion passage for insertion of a lock pin therethrough, the lock pin being substantially vertically oriented between the surface of a tooth and the arch wire passage for pressing the arch wire toward a side further from the tooth surface to thereby position the arch wire. The lock pin insertion passage has a bow-shape jetting toward the tooth surface and the lock pin is bow-shaped such that the following mathematical expression is satisfied:

REFERENCES:
patent: 1467789 (1923-09-01), Griffin
patent: 3435527 (1969-04-01), Kesling
patent: 3486231 (1969-12-01), Nelson
patent: 3975824 (1976-08-01), Lee
patent: 4527975 (1985-07-01), Ghafari et al.
patent: 4687441 (1987-08-01), Klepacki
patent: 5160260 (1992-11-01), Chang
patent: 5470228 (1995-11-01), Franseen et al.

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