Dentistry – Orthodontics – By device having means to apply outwardly directed force
Patent
1985-04-29
1986-06-03
Peshock, Robert
Dentistry
Orthodontics
By device having means to apply outwardly directed force
433 24, A61C 700
Patent
active
045927251
ABSTRACT:
A palatal arch bar of the removable and adjustable palatal arch wire type disclosed in Goshgarian U.S. Pat. No. 3,792,529 which is improved to have a dual upper arch usage, whereby the arch bar may be applied from the mesial and used as disclosed in said patent to derotate the first permanent molars, and then removed, reversed and reapplied to the molars from the distal to use them as anchor molars in the translation of the upper arch canines. The improved arch bar comprises an arch wire equipped with a fitting or spur adjacent each terminal end of the arch wire that adapts the arch bar for use in bodily retraction of the maxillary permanent canine teeth. The spurs of the arch wire are each located on the arch wire to be disposed at the level of the centrum of the respective maxillary first permanent molars when the arch wire is arched by the orthodontist in shaping it for application to a particular patient, and are disposed to be anteriorly directed, and thus inoperative, when the arch wire is applied as disclosed in said patent. In the second use of the arch bar, after the arch bar is removed, and pivoted 180 degrees, and re-applied to the maxillary first molars from the distal, with the spurs forming now being positioned to be each connected, by a lingual elastic, to a canine mounted lingual hook on the same side of the jaw as the molar, with the canine mounted hook being disposed at the level of the centrum of the canine in question.
REFERENCES:
patent: 3162948 (1964-12-01), Gerber
patent: 3256602 (1966-06-01), Broussard et al.
patent: 3792529 (1974-02-01), Goshgarian
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