Crystalline orthodontic bracket

Details Crystalline orthodontic bracket Crystalline orthodontic bracket

1988-07-18

1990-06-12

Wilson, John J.

Dentistry

Orthodontics

Bracket

433 9, A61C 700

Patent

active

049328654

ABSTRACT:
A sapphire orthodontic bracket with enhanced tolerance to fabrication, installation and use is fabricated such that the "r" planes of the sapphire are at substantially equal angles to the longitudinal axis of the arch wire groove of the bracket.

REFERENCES:
patent: 4219617 (1980-08-01), Wallshein
patent: 4595598 (1986-06-01), De Luca et al.
patent: 4639218 (1987-01-01), Jones et al.
patent: 4681538 (1987-07-01), De Luca et al.
patent: 4838786 (1989-06-01), Reher et al.

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