Preadjusted orthodontic bracket system and method

Details Preadjusted orthodontic bracket system and method Preadjusted orthodontic bracket system and method

1995-11-07

1998-10-13

Lucchesi, Nicholas D.

Dentistry

Orthodontics

Bracket

433 20, 433 24, A61C 300

Patent

active

058203702

ABSTRACT:
A preadjusted orthodontic bracket system for applying torque force to a selected tooth. The system comprises an archwire of substantially rectangular cross-section having first and second side dimensions and a bracket configured to be attached to the selected tooth and including a substantially rectangular slot which edgewise receives the archwire, the slot having a predetermined width and being formed in the bracket at a built-in torque angle. The smaller of the first and second side dimensions of the archwire is less than full-size for the width of the bracket slot and the built-in torque angle of the slot is greater than a full expression of a target torque angle recommended for the tooth by a selected one of the Roth, Andrews, Alexander, Hilgers, Bench, Ricketts, Cetlin and other known preadjusted orthodontic techniques. The archwire and preadjusted bracket, in combination, apply force to the tooth at an actual torque angle which substantially corresponds to the target torque angle recommended for the tooth by the selected orthodontic technique.

REFERENCES:
patent: 3477128 (1969-11-01), Andrews
patent: 3660900 (1972-05-01), Andrews
patent: 5474448 (1995-12-01), Andreiko et al.
patent: 5588833 (1996-12-01), Risse
Dellinger, Eugene L., "A scientific assessment of the straight-wire appliance," American Journal of Orthodontics, vol. 73, No. 3, Mar. 1978, pp. 290-299.
Creekmore, Thomas D., et al., "Straight wire: The next generation," American Journal of Orthodontics and Dentofacial Orthopedics, vol. 104, No. 1, Jul. 1993, pp. 8-20.

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