Orthodontic headgear appliance safety system

Details Orthodontic headgear appliance safety system Orthodontic headgear appliance safety system

1976-07-09

1980-08-05

Peshock, Robert

Dentistry

Orthodontics

Including extra-oral force transmitting means

A61C 300

Patent

active

042159830

ABSTRACT:
An orthodontic headgear appliance having a safety system which includes a release mechanism for the headgear tensioning apparatus, a system for selectively setting limits for free travel of the facebow and for activating a disconnecting system when a forward force on the facebow is still being applied when the travel limit is reached.

REFERENCES:
patent: 3903604 (1975-09-01), Sneed
patent: 3997971 (1976-12-01), Moss
patent: 4115921 (1978-09-01), Armstrong
American Journal of Orthodontics, Nov. 62, vol. #48, No. 11, p. 6.

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