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Orthognathic surgery (/ ˌ ɔːr θ ə ɡ ˈ n æ θ ɪ k /), also known as corrective jaw surgery or simply jaw surgery, is surgery designed to correct conditions of the jaw and lower face related to structure, growth, airway issues including sleep apnea, TMJ disorders, malocclusion problems primarily arising from skeletal disharmonies, and other orthodontic dental bite problems that cannot ...
An expander can be used on an adult without surgery but would be used to expand the dental arch, and not the palate. Sometimes children and teenage patients, and occasionally adults, are required to wear a headgear appliance as part of the primary treatment phase to keep certain teeth from moving (for more detail on headgear and facemask ...
Prior to the development of modern dentistry, there was no treatment for this condition; those who had it simply endured it. Today, the most common treatment for mandibular prognathism is a combination of orthodontics and orthognathic surgery. The orthodontics can involve braces, removal of teeth, or a mouthguard. [19]
Facemasks or reverse-pull headgear needs to be worn between 12 and 23 hours per day, but typically a period of 14 to 16 hours each day is effective in correcting the underbite. [2] Overall wear time is usually anywhere from 12 to 18 months depending on the severity of the bite and how much a patient's jaws and bones are growing over this time. [1]
It is important to take into consideration any habitual risk factors, as this is crucial for a successful outcome without relapse. Treatment approach includes behavior changes, appliances and surgery. Treatment for adults include a combination of extractions, fixed appliances, intermaxillary elastics and orthognathic surgery. [30]
The surgery may be performed in consultation with an Orthodontist who works on repositioning the teeth in the mouth. [1] Severe cases require surgical correction after completing craniofacial growth around age 17-21. [5] Milder forms without obstruction can be corrected for cosmetic reasons using veneers, snap in smiles, and overlay dentures [6]
The mid-palatal suture is first cut open into two parts. The center of the midpalatal suture is then inserted into the open slit. Once fully inserted, the mid-palatal suture of the patient is then closed by the surgeon. The orthodontist will then finish the procedure by connecting the palatal expanders band rings to the patients maxillary molars.
A Le Fort I osteotomy surgically moves the upper jaw to correct misalignment and deformities. It is used in the treatment for several conditions, including skeletal class II malocclusion, cleft lip and cleft palate, vertical maxillary excess (VME) or deficiency, and some specific types of facial trauma, particularly those affecting the mid-face.
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