Tensioning screw for orthodontic adjustment devices

Details Tensioning screw for orthodontic adjustment devices Tensioning screw for orthodontic adjustment devices

1999-06-23

2000-07-18

Lucchesi, Nicholas D.

Dentistry

Orthodontics

Means to transmit or apply force to tooth

433 19, 433 7, A61C 300

Patent

active

060898623

ABSTRACT:
A tensioning screw for orthodontic teeth straightening devices employed to adjust the situation and position of teeth along the curve of the jaw. The screw includes a nut and a threaded shaft that extends through it. An essentially resilient component (11) is disposed between the nut (6) and the shaft (2), at least on one side where the shaft enters or leaves the nut, and rests against the shaft's threads to prevent the shaft from undesired turning with respect to the nut.

REFERENCES:
patent: 4483674 (1984-11-01), Schuetz
patent: 4571178 (1986-02-01), Rosenberg
patent: 4723910 (1988-02-01), Keller
patent: 5482463 (1996-01-01), Wilson, Jr. et al.
patent: 5873715 (1999-02-01), Liou

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