Plier set for making torquing bends in orthodontic arch wires

Details Plier set for making torquing bends in orthodontic arch wires Plier set for making torquing bends in orthodontic arch wires

1976-11-24

1977-08-23

Combs, E. M.

Wireworking

Crimping

Implements

32 66, 72409, 140149, B21F 100, B21F 700, B21D 1114, A61C 700

Patent

active

040433641

ABSTRACT:
A wire-bending plier set for permanently twisting a portion of orthodontic arch wire about the wire axis to enable application of a torque force to a malpositioned tooth. The plier is configured to grip the wire at spaced-apart positions between which the twisting bend is to be made. A lever or key is then engaged with the wire between the gripped areas, and the key is rotated about the wire axis to stress the wire beyond the elastic limit and impart the desired twist.

REFERENCES:
patent: 1299103 (1919-04-01), Angle
patent: 1652814 (1927-12-01), Cary
patent: 2783669 (1957-03-01), Scarborough
patent: 2868239 (1959-01-01), Ellis
patent: 3146804 (1964-09-01), Wallshein
patent: 3244201 (1966-04-01), Wallshein
patent: 3696654 (1972-10-01), Bohn

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