Long-arm type upright molar tooth spring

Details Long-arm type upright molar tooth spring Long-arm type upright molar tooth spring

2008-01-30

2010-11-23

Rodriguez, Cris L (Department: 3732)

Dentistry

Orthodontics

Means to transmit or apply force to tooth

Reexamination Certificate

active

07837468

ABSTRACT:
A long-arm type upright molar tooth spring includes a lingual groove rest, for resting the spring at a lingual groove of a first molar tooth; a loop, for surrounding and fixing the periphery of the second molar tooth; a buccal bracket rest, for resting the spring at a buccal bracket of the first molar tooth; a reactivating area, being an area between the first molar tooth and the second premolar tooth; a lever, for applying a force onto the second molar tooth; and an arc, extended from an adjacent wall between an engaging surface of the first molar tooth and an engaging surface of the second molar tooth, and fixed at a root of the second molar tooth.

REFERENCES:
patent: 4256456 (1981-03-01), Wallshein
patent: 5199869 (1993-04-01), McGann
patent: 5314331 (1994-05-01), Brosius et al.
patent: 5720611 (1998-02-01), Teng
patent: 2004/0197726 (2004-10-01), Miyawaki et al.
patent: 2007/0184400 (2007-08-01), White

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