Orthodontic bracket

Details Orthodontic bracket Orthodontic bracket

1982-09-30

1984-12-11

Peshock, Robert

Dentistry

Orthodontics

Bracket

A61C 700

Patent

active

044875819

ABSTRACT:
An improved orthodontic bracket is formed of a wire gripping block secured within a spring metal base having wings or string tabs which set within tab receiving slots on opposite ends of the block. A slot within the face of the block is configured for gripping an orthodontic banding or arch wire extending from tooth to tooth, the face being large enough to accommodate any desired orientation of the slot to convert tension forces in the wire to a desired amount of torque for inducing a predetermined rotation of the tooth. A central plate portion of the base includes a slot elongated for the guidance of an orthodontic pin between the block and the base while transverse wing portions of the aperture serve as keyways for cooperation with alignment pins extending from a back face of the block. A channel for receipt of the orthodontic pin is also located on the back face of the block. A bifurcated shim having legs contacting cam surfaces of the block for insertion between the block and the base to facilitate removal of the block for interchanging with other blocks, the legs passing outside the alignment pins and one of the tabs, the one tab having peripheral slots for engagement with the legs.

REFERENCES:
patent: 2908974 (1959-10-01), Stifter
patent: 3946488 (1976-03-01), Miller et al.

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