Extrusion spring arm

Details Extrusion spring arm Extrusion spring arm

1990-07-12

1992-05-12

Mancene, Gene

Dentistry

Orthodontics

Means to transmit or apply force to tooth

433 24, A61C 300

Patent

active

051122219

ABSTRACT:
To aid in the eruption of palatally impacted teeth, an elongated resilient wire, having a loop formed at one end thereof and a coil spring formed at the other end thereof, is attached to an archwire fixed to the patient's mouth, at the coil spring end thereof. An eyelet is bonded to an exposed portion of the impacted tooth, and the loop is attached to the eyelet by an elastic ligature. When the loop is being attached to the eyelet, the resilient arm is moved into a position against the force of the spring so that, when the resilient arm is released, the action of the spring will force the impacted tooth down and out of the palate, into the mouth and laterally, towards a dental arch.

REFERENCES:
patent: 3127677 (1964-04-01), Schachter
patent: 3237305 (1966-03-01), Hegedus
patent: 3641672 (1972-02-01), Kesling
patent: 3793730 (1974-02-01), Begg et al.
patent: 3835538 (1974-09-01), Northcutt
patent: 4187610 (1980-02-01), Ziegler
patent: 4580976 (1986-04-01), O'Meara
patent: 4842514 (1989-06-01), Kesling
patent: 4869667 (1989-09-01), Vardimon
patent: 5035614 (1991-07-01), Greenfield

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