Dentistry – Orthodontics – By device having means to apply outwardly directed force
Patent
1985-02-04
1986-02-18
Peshock, Robert
Dentistry
Orthodontics
By device having means to apply outwardly directed force
A61C 700
Patent
active
045711771
ABSTRACT:
Each of two nuts includes two cylindrical recesses, the bottoms of which are pierced by openings of smaller diameter. Each of two jack bodies comprises, besides one of the nuts, two independent rods, the rectilinear ends of which are each fitted in one of the recesses and each include a blind hole serving as a guide for one of two guide pins connecting the nuts. By means of a screw having oppositely threaded ends screwed into tapped bores in the nuts, the jack bodies can be moved toward or away from one another, whereby forces situated strictly in the same plane can be exerted upon devices anchoring the appliance to the teeth. These anchoring devices are independent of one another and are each connected to only one tooth.
REFERENCES:
patent: 3835540 (1974-09-01), Biederman
patent: 4144643 (1979-03-01), Krygier
patent: 4197644 (1980-04-01), Ackerman
Peshock Robert
Rodam SA
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