EXTRAORAL APPARATUS
These appliances, which are used in some of the patients in adolescence, require a high level of patient compliance. Since insertion and removal are under the patient's control, treatment may result in disappointment in reluctant patients. The patient needs to know this: Just as a child with a broken arm needs to have his arm put in a cast to heal, and this is not a shameful or funny situation, similarly, such an option must be endured in order to have more beautiful teeth in orthodontic treatment. It is very important that the patient wears these appliances correctly and for the desired duration. Being lazy during the day and forgetting to wear the appliance will prolong the total treatment time. Although there are alternatives to these appliances, which have had a place in orthodontic treatment for many years, none of them have been as successful as these. Therefore, paying attention to these appliances and wearing them when necessary is a necessity for successful treatment. There are various types of extraoral appliances:
Headgear
An internal piece that is worn on the upper molars and an external piece that is supported by the neck. It consists of parts. It is used in some cases where the upper teeth are in front of the lower teeth. Headgear limits the forward development and movement of your upper teeth and upper jaw by applying a slight backward pulling force on your teeth. There are two different types of extra-oral strap that go around the nape of the neck and the top of the head.
Facemask (Face mask). or Reverse Headgear
It is used when the upper teeth are behind the lower teeth. It is used with elastics on the front part of the face. It pulls the upper teeth forward with elastics to ensure the forward development of the upper jaw and teeth.
Chin rest
It goes around the top of the head and tightens the jaw. This grasping device allows the lower jaw to be pulled backwards or forwards. Usage area is limited. Because the lower jaw cannot be controlled and directed as desired, like the upper jaw. With the development of surgical options, having the jaw pulled back with a surgical treatment is now a more accepted option for patients with a forward lower jaw after the age of 18.
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