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Extraoral Appliances in Orthodontics by samar yousif mohamed is a document available to read on EtoBox.

1. Extra-oral appliances are worn outside the mouth to apply forces from the head and neck to change differential growth rates and produce skeletal changes. Headgear and facemasks are commonly used extra-oral appliances. 2. Headgear consists of a face bow, force element, and anchor unit (head cap or cervical strap). It is most effective during the prepubertal period to restrict downward and forward growth of the maxilla. 3. A chin cup is used to treat class III malocclusions by applying downward and bac

Author

samar yousif mohamed

Language

EN