Orthognathic Surgery: Advanced Class III

Surgical correction in mandibular prognathism and mid-face hypoplasia

Written by: Saygı Hospital Health Guide Editorial Board

Last updated: June 17, 2026

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Ağız ve Diş Sağlığı department. Book Appointment →

What is Orthognathic Surgery: Advanced Class III?

Severe Class III skeletal discrepancy cannot be fully resolved with orthodontic camouflage and requires orthognathic surgery.

Surgery is performed via bilateral sagittal split osteotomy (BSSO), maxillary LeFort I osteotomy, or a bimaxillary combination of both.

After preoperative orthodontic decompensation positions the teeth correctly, surgery is performed; outcomes are long-lasting and substantially improve quality of life.

Symptoms

Anterior position of the mandible

Anterior crossbite (reverse occlusion)

Flat or concave mid-face

Difficulty chewing

Speech problems

Aesthetic concerns

Risk Factors

Family history

Syndromic growth patterns

Hormonal disorders

Early childhood trauma

Dental fusion

Congenital malformation

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

Pronounced facial asymmetry
When orthodontic treatment alone has been insufficient
Functional chewing and speech problems
Coexisting obstructive sleep apnea
Significant psychosocial impact

Treatment Methods

Cephalometric analysis and 3D virtual planning

Preoperative orthodontic decompensation (12-18 months)

BSSO with or without LeFort I osteotomy

Rigid internal fixation

Postoperative orthodontic finishing

Retention and long-term follow-up

Which Department to Visit?

You can visit our Ağız ve Diş Sağlığı department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Ağız ve Diş Sağlığı Department

Let us help you

You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.