Orthodontic headgear disconnectible connection

Details Orthodontic headgear disconnectible connection Orthodontic headgear disconnectible connection

A - Human Necessities

61

C

83/1

A61C 7/00 (2006.01)

Patent

CA 1140783

Applicant: Maclay M. Armstrong Title: Orthodontic Headgear Disconnectible Connection ABSTRACT An external 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. 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.

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