Bumper for orthodontic brackets

Details Bumper for orthodontic brackets Bumper for orthodontic brackets

1988-11-07

1990-08-21

Stone, Cary E.

Dentistry

Orthodontics

Bracket

433 18, A61D 300

Patent

active

049501585

ABSTRACT:
A preformed, elastomeric orthodontic ligature includes a molded protrusion or bumper portion integrally connected to an occlusal region of a ring portion of the ligature. When the ligature is connected to a bracket, the bumper portion extends over occlusal surfaces of the bracket including an occlusal tie wing in order to prevent direct contact of the bracket with an opposing tooth. In preferred embodiments, the bumper portion is connected to the ring portion by a thin web which is configured to enable the ring portion to firmly seat under the tie wing and also enables the bumper portion to conform to the occlusal surfaces of the bracket such that the ring portion does not normally stretch and disengage the tie wings during mastication.

REFERENCES:
patent: 3913228 (1975-10-01), Wallshein
patent: 4054997 (1977-10-01), Wallsheim
Sales brochure "A" Company, San Diego, CA (copyright 1986).
Pp. 8-2 to 8-4 Orthodontic Catalog No. 122 of Unitek Corp., Monrovia, CA (copyright 1989).

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