Dentistry – Orthodontics – By device having means to apply outwardly directed force
Patent
1992-11-30
1995-03-21
O'Connor, Cary E.
Dentistry
Orthodontics
By device having means to apply outwardly directed force
433 20, 433 17, A61C 300
Patent
active
053990870
ABSTRACT:
An orthodontic expansion arch and sheath and sheath insert are provided for use in applying maxillary and mandibular lingual orthodontic appliances for expansion of the arches. The sheath permits use of appliances employing multiple wires composed of non-weldable metal alloys in a more convenient manner and in a greater variety of appliances.
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O'Connor Cary E.
Stitt Richard P.
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