Orthodontic spring force adjustment and disconnectible connectio

Details Orthodontic spring force adjustment and disconnectible connectio Orthodontic spring force adjustment and disconnectible connectio

1980-02-26

1983-11-22

Peshock, Robert

Dentistry

Orthodontics

Including extra-oral force transmitting means

A61C 700

Patent

active

044166257

ABSTRACT:
An extraoral force-reaction device engageable with the wearer's head and/or neck, such as a headcap or a neckband, is connected to an intraoral force-applying device, such as molar bands, by helical spring force-producing means. Snapback of the force-applying means is controlled in response to stressing of the force-producing means beyond a predetermined maximum degree of force exerted by the force-producing means. Snapback control is effected by disconnectible connection means which can be disconnected to interrupt the application to the intraoral means of force capable of moving such intraoral means. The force to be exerted by the spring force-producing means can be readily adjustable in predetermined increments, such as by engaging a spring end hook selectively with any anchor post of several posts arranged in a row lengthwise of the spring.

REFERENCES:
patent: 4167061 (1979-09-01), Forster
patent: 4259065 (1981-03-01), DeWoskin

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