Orthodontic bracket assembly

Details Orthodontic bracket assembly Orthodontic bracket assembly

1982-09-21

1984-02-07

Wilson, John J.

Dentistry

Orthodontics

Bracket

A61C 300

Patent

active

044300611

ABSTRACT:
An orthodontic bracket assembly for bonding to the surface of a tooth is disclosed. The assembly includes a pad and an archwire bracket. A plurality of cavities are provided in the tooth abutting surface of the pad. The walls of the cavities are provided with an irregular surface texture to enhance the bonding between the tooth and the orthodontic bracket. In the preferred embodiment the bracket is cast. The external surface of the bracket is smoothed in a tumbling operation in which the particle size of the abrasive is chosen so that the cavity walls are not subjected to treatment but are left in their irregular, as-cast state. Also disclosed is a method for preparing the mold to produce the cavities in the tooth-abutting surface of the pad.

REFERENCES:
patent: 3543452 (1970-12-01), Guenther
patent: 3765091 (1973-10-01), Northcutt
patent: 3975824 (1976-08-01), Lee
patent: 4100678 (1978-07-01), Yatabe
patent: 4165561 (1979-08-01), Miller et al.
patent: 4243386 (1981-01-01), Kawaguchi
patent: 4369033 (1983-01-01), Webb et al.

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