What is Orthognathic / Corrective Jaw Surgery?
Orthognathic surgery repositions the upper jaw, lower jaw or chin when they are not aligned properly. It is used for significant bite problems that cannot be corrected by braces alone, such as an underbite, severe overbite, open bite or facial asymmetry.
Common symptoms
- Difficulty biting or chewing because teeth do not meet correctly
- A prominent or receding lower jaw or chin
- An open bite where front teeth do not touch
- Facial asymmetry
- Jaw joint discomfort or speech issues related to jaw position
When to seek an assessment
Consider an assessment if you have a significant bite or jaw alignment problem, particularly once facial growth has finished (usually late teens to early twenties).
The role of an Oral & Maxillofacial Surgeon
Corrective jaw surgery is a planned, team-based treatment. The Oral & Maxillofacial Surgeon assesses the facial skeleton, plans jaw movements with the orthodontist, and performs the surgery.
Diagnosis and assessment
Planning involves clinical assessment, photographs, dental models or scans, cephalometric X-rays or CBCT, and often digital surgical planning. Growth, general health and patient goals are all considered.
Treatment options
The options below are a general overview. The right approach for you depends on your examination, imaging and any biopsy or pathology findings.
Orthodontics alone or camouflage
Milder problems may be managed with braces without surgery.
Pre-surgical orthodontics
Braces for typically 12 to 18 months to align teeth ready for surgery.
Jaw surgery
Procedures such as Le Fort I osteotomy (upper jaw), BSSO (lower jaw) and genioplasty (chin), performed under general anaesthesia.
Post-surgical orthodontics
Final fine-tuning of the bite after the jaws have healed.
Recovery and aftercare
- Hospital stay of one to a few days
- Facial swelling that settles over several weeks
- Liquid then soft diet for around six weeks
- Temporary numbness of the lip or chin is common and usually improves over months
You will receive specific aftercare instructions for your procedure.
Referral and multidisciplinary care
Orthognathic surgery always requires orthodontic partnership. Patients with cleft or syndromic conditions may be managed through a specialised multidisciplinary cleft or craniofacial team.
This page provides general information and is not a substitute for a personal consultation. Outcomes vary between individuals.
