Orthodontic spacing spring

Details Orthodontic spacing spring Orthodontic spacing spring

1992-04-23

1994-05-24

Wilson, John J.

Dentistry

Orthodontics

Means to transmit or apply force to tooth

433149, A61C 300

Patent

active

053143310

ABSTRACT:
A device for separating a pair of adjacent teeth comprising a wire spring formed from a single piece of wire. The wire spring comprises two angled leg segments connected by a bridging portion, the leg segments being offset from one another and from a central reference plane such that when the leg segments are drawn towards a common plane, the bridging portion is placed under a torsional load. This torsional load causes the legs to apply a force to the proximal walls of the adjacent teeth. The terminal ends of the leg portions are blunted, preferably through the formation of loops.
The wire utilized in formation of the separating spring is of a substantially rectangular cross section wherein the wire has a horizontal surface dimension which is greater than the vertical side dimension.

REFERENCES:
patent: 3052029 (1962-09-01), Wallshein
patent: 3837082 (1974-09-01), Pool
patent: 4256456 (1981-03-01), Wallshein
McGann, B. Donald, "A Nickel Titanium Separating Spring", Journal of Clinical Orthodontics, May, 1991.

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