Palatal expander

Details Palatal expander Palatal expander

1976-06-16

1977-09-06

Peshock, Robert

A61C 700

Patent

active

040458717

ABSTRACT:
Disclosed is a device useful by an orthodontist for expanding a human palate. It comprises a stationary body secured to an anchor tooth on one side of the palate and a movable block secured to an anchor tooth on the other side of the palate. A helical spring urges the two apart to expand the palate. A keeper holds them together until they are fixed in place by the orthodontist.

REFERENCES:
patent: 1582570 (1926-04-01), Brust
patent: 3284902 (1966-11-01), Dillberg et al.
patent: 3977082 (1976-08-01), Siztkowski

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