Orthognathic Jaw Surgery

Orthognathic surgery is a type of surgery that is used to correct abnormalities in the jaw and facial bones. It is a complex surgical procedure that involves moving the bones of the upper jaw, lower jaw, or both, to improve the function and aesthetics of the face.


Orthognathic surgery is typically used to treat conditions such as malocclusion (misaligned bite), jaw deformities, sleep apnea, and facial asymmetry. These conditions can cause a variety of problems, such as difficulty chewing or speaking, headaches, and sleep disorders.



Orthognathic treatment is defined as the treatment of dento-facial deformities. This includes patients with named syndromes and conditions including:

  • Cleft lip and palate
  • Obstructive sleep apnoea
  • Hemi-facial macrosomia
  • Condylar hyperplasia
  • Chronic jaw or jaw joint (TMJ) pain and headache
  • Post-traumatic jaw deformities and malocclusions
  • Patients with significant jaw deformities which result in functional and psycho-social disadvantage.

The aforementioned patients commonly have dental malocclusions that cannot be managed by orthodontic treatment alone. All of these conditions are relatively uncommon but can have serious detrimental effects on patients in terms of function and integration in society.

Although the majority of patients that present for orthognathic treatment are young adults, older patients also present with worsening symptoms and request treatment. Treatment is usually carried out following cessation of growth.

The benefits of orthognathic surgery can be significant. Patients may experience improved facial symmetry, better breathing, and improved speech and chewing ability. In addition, the surgery can improve the overall appearance of the face, leading to increased self-confidence and self-esteem.