Orthodontic appliance and method of preparation thereof

Details Orthodontic appliance and method of preparation thereof Orthodontic appliance and method of preparation thereof

1986-04-03

1988-04-05

Wilson, John J.

Dentistry

Orthodontics

Bracket

433 8, 433213, A61C 300

Patent

active

047355697

ABSTRACT:
An aesthetically pleasing orthodontic appliance which is formed by casting a molten precious metal alloy, a major portion of which is gold and a minor portion of which is platinum, such appliance having a contoured, tooth-engaging surface with at least one irregularity therein to permit a dental adhesive to form a mechanical bond with the appliance, the irregularity being a recess which extends into the interior of the appliance to reduce the weight thereof, and a "lost wax" type of process for forming such a precious metal alloy orthodontic appliance using an organic orthodontic appliance as a form, the contoured, tooth-engaging rear surface of such organic orthodontic appliance being treated to form at least one irregularity therein corresponding to the irregularity that is desired in the precious metal alloy orthodontic appliance.

REFERENCES:
patent: 2889625 (1959-06-01), Saffir
patent: 3797115 (1974-03-01), Silverman et al.
patent: 4068379 (1978-01-01), Miller et al.
patent: 4216583 (1980-08-01), Reynolds
patent: 4470809 (1984-09-01), Klepacki

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