Dentistry – Orthodontics – Bracket
Patent
1983-08-09
1984-10-23
Peshock, Robert
Dentistry
Orthodontics
Bracket
433 18, A61C 700
Patent
active
044785771
ABSTRACT:
An orthodontic appliance for counteracting rotational forces acting on a tooth where such forces originate from the action of an arch wire on the surface mounted conventional orthodontic bracket, said arch wire forces being primarily intended for the linear translation of the tooth. Rotational forces are counteracted by means of a lever arm that is rigidly attached to the conventional orthodontic bracket and in contact with the arch wire at a point spaced apart from the junction of the arch wire and the orthodontic bracket. The counteracting forces generated by the lever arm are proportional only to the rotational forces induced in the tooth by the force from the arch wire. The lever arm may also be configured with a shank capable of being inserted in a rectangular hole located in the conventional orthodontic bracket. Such an appliance is capable of being positively locked into the aforementioned rectangular hole by means of a deformable tail section.
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