Orthodontic spring appliance and assembly

Details Orthodontic spring appliance and assembly Orthodontic spring appliance and assembly

1977-05-16

1980-04-29

Mancene, Louis G.

Dentistry

Orthodontics

Means to transmit or apply force to tooth

267168, A61C 700

Patent

active

041998650

ABSTRACT:
An intra-oral orthodontic spring appliance is provided which consists of a metallic coil spring having an enlarged tension releasable means at one end which engages fixed spring mounting means in the mouth and a tail at the other end which engages suitable means on a tooth to be repositioned. Preferably, the enlarged tension releasable means is an open coil spring formed over a portion of a closed coil spring. When the closed coil spring is passed through a fixed spring mounting means, e.g., a buccal tube, and attached to a tooth to be repositioned, the retractive force is provided by compression of the open coil spring and expansion of the closed coil spring.

REFERENCES:
patent: 783609 (1905-02-01), Canning
patent: 1199663 (1916-09-01), Canning
patent: 1202797 (1916-10-01), Canning
patent: 1202798 (1916-10-01), Canning
patent: 1452436 (1923-04-01), Pullin
patent: 1562403 (1925-11-01), Wilson
patent: 1622106 (1927-03-01), Hallwood
patent: 2320331 (1943-05-01), Jenewein et al.
patent: 3618214 (1971-11-01), Armstrong
patent: 3936938 (1976-02-01), Northcutt

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