Orthodontic appliance

Details Orthodontic appliance Orthodontic appliance

1984-07-16

1986-05-13

Peshock, Robert

Dentistry

Orthodontics

Including extra-oral force transmitting means

A61C 700

Patent

active

045883807

ABSTRACT:
An improved orthodontic appliance of the type generally referred to as headgear, for applying a force to a tooth to move the tooth bodily and/or rotationally, and for pushing outward the cheek to encourage spontaneous jaw growth. The appliance comprises an outer bow intended to be retained adjacent the user's face by a neck strap and an inner bow attached to the outer bow intended to fit within the user's mouth proximate to his cheeks. The inner bow includes left and right activating arms, which arms include shoulder portions to push the cheeks outwardly, and which arms also include noncircular engagement means adapted to fit snugly within tubes fixed to a left and a right rear tooth. The activating arms are formable and sufficiently resilient that they can be selectively deformed to apply a force to the teeth to achieve the desired movement. The noncircular engagement means prevents undesired rotational movement between the appliance and the teeth, and assures that the force developed by the arms will be properly transferred to the teeth.

REFERENCES:
patent: 4087915 (1978-05-01), Andrews
patent: 4184254 (1980-01-01), Kraus

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