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Orthodontics
| Term | Definition |
|---|---|
| arch wire | a contoured wire that provides force when teeth are guided in movement for orthodontics |
| auxiliary | attachments located on brackets and bands that hold arch wires in place |
| band | stainless steel ring attached to molars to hold the arch wire and auxiliaries for orthodontics |
| bracket | a small device bonded to teeth to hold the arch wire in place |
| braces | another term for fixed orthodontic appliances |
| cephalometric radiograph | an extraoral radiograph of the bones and tissues of the head |
| cross-bite | condition that occurs when a tooth is not properly aligned with its opposing tooth |
| crowding | condition that occurs when teeth are not properly aligned within the arch |
| distoclusion | class II malocclusion in which the mesiobuccal cusp of the maxillary first molar occludes mesial to the mesiobucal groove of the mandibular first molar |
| ectopic | an abnormal direction of tooth eruption |
| headgear | an external orthodontic appliance that is used to control growth and tooth movement |
| ligature tie | light wire used to hold the arch wire in its bracket |
| mesioclusion | term used for class III malocclusion |
| open bite | a lack of vertical overlap of the maxillary incisors, creating an opening of the anterior teeth |
| orthodontics | specialty of dentistry designed to prevent, intercept, and correct skeletal and dental problems |
| overbite | increased vertical overlap of the maxillary incisors |
| overjet | excessive protrusion of the maxillary incisors |
| positioner | an appliance used to retain teeth in their desired position |
| retainer | an appliance used for maintaining the positions of the teeth and jaws after orthodontic treatment |
| separator | device made from wire or elastic and used to separate molars before fitting and placement of orthodontic bands |