Dentistry – Orthodontics – Bracket
Patent
1988-11-07
1991-01-29
Mancene, Gene
Dentistry
Orthodontics
Bracket
433 9, A61C 700
Patent
active
049882937
ABSTRACT:
A single crystal orthodontic bracket is disclosed which is provided with an outer protective layer of a polycrystalline material so as to provide fracture toughness of the orthodontic bracket.
REFERENCES:
patent: 3504438 (1970-04-01), Wittman et al.
patent: 4050156 (1977-09-01), Chasanoff et al.
patent: 4302532 (1981-11-01), Wallshein
patent: 4595598 (1986-06-01), De Luca et al.
patent: 4820545 (1989-04-01), Negrych
Collins Paul R.
Rothrock Larry R.
Lynch Michael
Mancene Gene
Reinisch Morris N.
Union Carbide Chemicals and Plastics Company Inc.
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