extraoral force

extraoral force
force applied by orthodontic anchorage units (calvarial, occipital, or cervical) outside the oral cavity.

Medical dictionary. 2011.

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  • extraoral anchorage — an orthodontic anchorage in which the resistance unit is outside of the oral cavity, the force being transmitted to the teeth by means of headgear attached to the teeth. Called also extramaxillary a …   Medical dictionary

  • 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

  • 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

  • anchorage — 1. Operative fixation of loose or prolapsed abdominal or pelvic organs. 2. The part to which anything is fastened. In dentistry, a tooth or an implanted tooth substitute with which a fixed or removable partial denture, crown, or …   Medical dictionary

  • cap — 1. Any anatomic structure that resembles a c. or cover. 2. A protective covering for an incomplete tooth. 3. Colloquialism for restoration of the coronal part of a natural tooth by means of an artificial crown. 4. The nucleotide structure found… …   Medical dictionary

  • machine — Any mechanical apparatus or device. [L. machina, contrivance] anesthesia m. equipment used for inhalation anesthesia, including flowmeters, vaporizers, and sources of compressed gases, but not including the anesthetic circuit or mechanisms for… …   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

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