Dentistry – Orthodontics – By device having means to apply outwardly directed force
Patent
1995-10-26
1998-10-06
Wilson, John J.
Dentistry
Orthodontics
By device having means to apply outwardly directed force
433 20, A61C 300
Patent
active
058168001
ABSTRACT:
A palatal arch expander assembly provides low, constant expansion forces to the palatal arch and provides individual corrective forces to either the first or second molars. A shape memory or superelastic archwire can be cooled below its transition temperature so that it is easily bendable for insertion into the mouth. After insertion, the archwire warms to a temperature above its transition temperature and provides low, continual expansion forces throughout the treatment period without requiring further adjustment. A pair of adjustment wires are bendable and provide individual corrective forces to either the first or second molars. The adjustment wires can be readjusted at any point during the treatment period. The archwire can be formed from a nickel-titanium alloy wire or superelastic material and the adjustment wires can be formed from nicoloy, stainless steel, or similar metal wire.
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Brehm Lindsay W.
Huff Stephen M.
Senini Robert J.
Ortho Organizers, Inc.
Wilson John J.
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