✍️ Authored by: Dr. Aykut Gürel — Specialist in Oral, Dental and Maxillofacial Surgery 10+ years of clinical experience, 3,000+ successful surgical cases. Specialized in orthognathic surgery, asymmetric jaw correction and sleep apnea (UPPP, MMA) interventions. Last updated: 7 May 2026
When Is Orthognathic Surgery Needed? — 60-Second Answer
- Severe bite disorders — orthodontics alone cannot resolve bone position
- Aesthetic asymmetry — jaw misalignment, "crooked smile"
- Sleep apnea — MMA (maxillomandibular advancement) for severe OSAS
- Functional issues — chewing difficulty, speech problems, persistent jaw pain
- TMJ disorders related to skeletal imbalance
- Combination with dental implants — when jaw position must be corrected before implant placement
💡 Important: Orthognathic surgery is not aesthetic-only. International guidelines require objective functional indication (cephalometric analysis, sleep study, occlusal documentation). Purely aesthetic cases without functional indication are rarely candidates.
Common Orthognathic Surgery Indications
Lower Jaw Disorders
| Condition | Description |
|---|---|
| Mandibular retrognathia | Lower jaw set behind upper jaw — "weak chin" appearance |
| Mandibular prognathism | Lower jaw protrudes ahead of upper jaw — "underbite" |
| Asymmetric mandible | Lower jaw deviated to one side |
| Vertical maxillomandibular excess | Long lower face, gummy smile + open bite |
Upper Jaw Disorders
| Condition | Description |
|---|---|
| Maxillary hypoplasia | Underdeveloped upper jaw — flat midface |
| Maxillary protrusion | Upper jaw too far forward |
| Maxillary asymmetry | One-sided upper jaw |
| Vertical maxillary excess | "Long face syndrome" — gummy smile |
Combined Disorders
- Class III malocclusion — lower jaw forward + upper jaw back
- Open bite — front teeth do not contact when biting
- Severe overbite — front teeth deeply cover lower teeth
- Sleep apnea — narrow airway behind the jaw
Surgical Techniques
1. BSSO (Bilateral Sagittal Split Osteotomy)
The gold-standard mandibular surgery — the lower jaw is split lengthwise and repositioned (forward, backward or rotated). Most common.
2. Le Fort I Osteotomy
Used for upper-jaw repositioning. The maxilla is separated below the orbit, repositioned, and stabilized with titanium plates.
3. Le Fort II / III
Reserved for severe midface deformities (Crouzon, Apert syndromes).
4. Genioplasty
Chin reshaping — moving the chin tip forward, backward, up, down or rotation.
5. SARPE (Surgically Assisted Rapid Palatal Expansion)
Surgical assistance for adult palatal expansion. Used in narrow upper jaws.
6. Maxillomandibular Advancement (MMA)
Advancement of both jaws to enlarge the airway — gold-standard surgical solution for severe sleep apnea.
Treatment Timeline
Phase 1: Pre-Surgical Orthodontics (12–24 months)
- Brackets or clear aligners
- Teeth aligned to allow correct post-surgical occlusion
- This phase temporarily worsens the appearance — that is normal and expected
Phase 2: Surgical Planning (1–2 months)
- 3D cephalometric analysis
- Surgical splints prepared (often digitally with CAD/CAM)
- Anesthesia evaluation
- Multidisciplinary case review
Phase 3: Surgery (4–8 hours)
- General anesthesia
- 1- or 2-jaw operation depending on plan
- Intra-oral incisions — no external scars
- Titanium plate + screw fixation
- 1–3 nights hospital stay
Phase 4: Recovery (4–8 weeks)
- First 2 weeks: liquid diet
- 2–4 weeks: soft diet
- Limited mouth opening for 4–6 weeks
- Return to work (desk-based): 3–4 weeks
- Sports: 2–3 months
Phase 5: Post-Surgical Orthodontics (6–12 months)
- Fine-tune the bite
- Brackets removed
- Retainer for life
Total treatment span: 2–3 years (orthodontics + surgery + finishing).
Orthognathic Surgery Prices 2026 (Istanbul)
| Procedure | 2026 Price (EUR / USD) |
|---|---|
| Single-jaw surgery (BSSO or Le Fort I) | €5,500 – €11,000 / $6,000 – $12,000 |
| Double-jaw surgery (BSSO + Le Fort I) | €8,300 – €16,700 / $9,000 – $18,000 |
| Genioplasty (alone) | €1,700 – €3,300 / $1,800 – $3,600 |
| Combined double-jaw + genioplasty | €10,000 – €19,400 / $10,800 – $21,000 |
| SARPE (palatal expansion) | €3,300 – €6,700 / $3,600 – $7,300 |
| MMA (sleep apnea — both jaws advanced) | €11,000 – €19,400 / $12,000 – $21,000 |
| Pre-surgical orthodontics | €1,700 – €3,300 / $1,800 – $3,600 |
| Post-surgical orthodontics | €830 – €1,700 / $900 – $1,800 |
💡 Pricing factors: complexity (single vs double jaw), surgeon experience, hospital tier, anesthesia, length of stay, post-op imaging, complementary procedures.
ℹ️ Insurance: In Türkiye, SGK partially covers orthognathic surgery for functional indications (severe malocclusion, sleep apnea); aesthetic-only cases are out of scope. International private insurance may cover medically indicated cases — check your policy. Medical tourism patients pay self-pay.
Medical Tourism for Orthognathic Surgery in Istanbul
| Element | Detail |
|---|---|
| Stay duration | First trip: 7–10 days (consultation + surgery + 1st post-op) |
| Follow-up trips | 1 trip every 2–3 months for orthodontic adjustment (or remote with local orthodontist coordination) |
| Pre-op preparation | 12–18 months pre-orthodontics — coordinated remotely + locally |
| Hospital partnerships | JCI-accredited international hospitals in Istanbul |
| Multidisciplinary team | Maxillofacial surgeon + orthodontist + anesthesiologist + dental laboratory |
| Cost advantage | Roughly 50–70 % less than UK/US/Germany for the same standard of care |
💡 Important: Orthognathic surgery is a 2–3 year project. Local orthodontist coordination during pre- and post-op phases is essential. Patients flying in for "1-trip jaw surgery" face severe risk — we do not accept such cases.
Risks and Complications
Common (Usually Resolves)
- Facial swelling (2–4 weeks)
- Numbness in lower lip, chin, or gums (BSSO — typically resolves in 6–12 months)
- Nasal congestion (Le Fort I — 2–4 weeks)
- Limited mouth opening (4–6 weeks)
- Mild jaw pain (1–2 weeks)
Rare
- Permanent nerve damage (~5 %)
- Infection (< 2 % with proper prophylaxis)
- Plate/screw issues (rare — sometimes requires revision)
- TMJ problems (correlates with prior status)
- Bleeding (rare — typically intraoperative and managed)
When to Consider Alternatives
- Mild bite issues — orthodontics alone may be enough
- Pure aesthetic concerns — alternative aesthetic procedures may apply
- Patients < 18 years — wait for skeletal maturity
- Active periodontitis — treat first
⚠️ Medical disclaimer: All surgical procedures carry risk. No outcome is guaranteed. Treatment is recommended only after specialist evaluation and multidisciplinary consultation.
Academic References
The medical content in this guide draws on the following independent academic sources:
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Proffit WR, Phillips C, Turvey TA. Stability of surgical-orthodontic correction of orthognathic disharmonies. Seminars in Orthodontics, 2015. https://pubmed.ncbi.nlm.nih.gov/26269793/
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Holty JE, Guilleminault C. Maxillomandibular advancement for the treatment of obstructive sleep apnea: a systematic review and meta-analysis. Sleep Medicine Reviews, 2010. https://pubmed.ncbi.nlm.nih.gov/19828329/
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Naran S, Steinbacher DM, Taylor JA. Current concepts in orthognathic surgery. Plastic and Reconstructive Surgery, 2018. https://pubmed.ncbi.nlm.nih.gov/29794701/
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Cunningham SJ, Hunt NP. Quality of life and its importance in orthodontics. Journal of Orthodontics, 2001. https://pubmed.ncbi.nlm.nih.gov/11532779/
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Politis C, Sun Y, Lambrichts I, Agbaje JO. Self-reported hypoesthesia of the lower lip after sagittal split osteotomy. International Journal of Oral and Maxillofacial Surgery, 2013. https://pubmed.ncbi.nlm.nih.gov/23643328/
For an orthognathic surgery consultation (functional and aesthetic jaw correction), contact Derya Dental Clinic in Maltepe, Istanbul. Get in touch or schedule via WhatsApp.
Last updated: 7 May 2026 — Medical review: Dr. Aykut Gürel.
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This content is for informational purposes only and does not replace medical diagnosis or treatment. Please consult a specialist for decisions about your oral and dental health.
