Dentistry – Orthodontics – Bracket
Patent
1988-07-12
1990-05-22
Wilson, John J.
Dentistry
Orthodontics
Bracket
433 8, A61C 300
Patent
active
049273620
ABSTRACT:
A sintered-metal convertible buccal tube for orthodontic use, and having a body with an integrally formed cover plate closing an outer side of an arch-wire slot. Lines of weakness are defined along opposite side edges of the cover plate so the plate can be sheared away from the body to open the slot at a later treatment phase.
REFERENCES:
patent: 3391461 (1968-07-01), Johnson
patent: 3838514 (1974-10-01), Polak
patent: 4134208 (1979-01-01), Pearlman
patent: 4498867 (1985-02-01), Kesling
patent: 4781582 (1988-11-01), Kesling
patent: 4820151 (1989-04-01), Pospisil
Christoff James D.
Kirn Walter N.
Sell Donald M.
Unitek Corporation
Wilson John J.
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