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Teenage patient been fitted with her orthopedic / orthodontic facemask - required wear-time 16 hours daily. A facemask (also referred to as a protraction facemask, orthopedic facemask, or reverse-pull headgear) is a type of an orthodontic headgear used to treat underbite and other malocclusions where the upper jaw is too far backwards. [1]
Rapid palatal expansion (RPE) or Rapid Maxillary Expansion (RME) is an expansion technique where expansion of 0.5 mm to 1 mm is achieved each day until the posterior crossbite is relieved. The expander works by turning a key inside the center of the expander. The turn of this key will push the arms of the expander.
A removable appliance is usually used by patients who have high degree of compliance with their orthodontic treatment. Fixed appliances are able to produce very accurate movement in the teeth [ 1 ] Both fixed and removable functional appliances can be used to correct a malocclusion in three planes: Anterior-Posterior, Vertical and Transverse.
In 2005 Garib et al., [5] stated in their study that tooth-borne (Hyrax) and tooth tissue-borne (Haas-type) expanders tended to produce similar orthopedic effects. In both methods, RME led to buccal movement of the maxillary posterior teeth, by tipping and bodily translation.
Orthodontic expansion was first described by Emersen Angell in the 1860s. Kole in 1959 was the first person to speak about the procedure of corticotomy in adults with maxillary constriction. [ 1 ] Brown first described the surgical technique for SARPE in 1938. [ 2 ]
The orthodontic facemask typically consists of three major components: Face frame: first, the face frame is a metal and plastic structure which is adjusted to fit onto the patient's face. The frame is normally stabilized on the child's face with the aid of a chin cup and a forehead pad. These are padded to ensure patient comfort.
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