extraoral orthodontic appliance

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• appliance — A device used to improve function of a part, or for therapeutic purposes. [fr, O. Fr. aplier, to apply, fr. L. applico, to fold together] craniofacial a. a device used to immobilize and/or reduce mandibular or midfacial fractures. SEE ALSO …   Medical dictionary

• extraoral appliance — an orthodontic appliance using a resistance unit outside of the oral cavity; see under anchorage …   Medical dictionary

• chincap — chin·cap (chinґkap) an extraoral orthodontic appliance consisting of a caplike device fitted over the chin, which is connected to the headgear by elastics for the purpose of exerting upward and backward force on the mandible in the treatment of… …   Medical dictionary

• headgear — A removable extraoral appliance used as a source of traction to apply force to the teeth and jaws. * * * n. (in dentistry) a strap that is fixed round the back of the head and/or the neck and attached to an orthodontic appliance to aid tooth… …   Medical dictionary