✍️ Authored by: Dr. Aykut Gürel — Specialist in Oral, Dental and Maxillofacial Surgery Experienced in TMJ disorders, bruxism and botulinum toxin applications around the jaw region. Coordinates multidisciplinary cases with physiotherapy and occlusal splint specialists. Last updated: 6 May 2026
Jaw Botox in 60 Seconds
- Two distinct applications: masseter botox (chewing muscle, jaw angle) and mentalis botox (chin tip muscle)
- For TMJ and bruxism: masseter botox is the standard — it reduces muscle hyperactivity
- Aesthetic uses: masseter (V-shape, face slimming) or mentalis (cobblestone-chin / orange-peel chin smoothing)
- Duration: 3–6 months (first treatment 3–4 months, repeat sessions extend to 5–6 months)
- Procedure: 5–10 minutes, no local anesthesia required
- Reversible: muscle returns to baseline function once the toxin wears off
💡 Important: "Jaw botox" is not a diagnosis on its own — your specialist first evaluates your complaint (pain, aesthetics, bruxism), then chooses the muscle and dose. Tell your doctor what you are experiencing, not what treatment you want.
Which Muscle? Mentalis vs Masseter
Two different muscles around the jaw can be treated with botox. The distinction matters because the target, dose, effect and price all differ.
Masseter (Jaw Angle)
- Location: above the jaw angle (gonion), in front of the ear
- Function: chewing — the strongest masticatory muscle
- Botox indications: bruxism (teeth grinding), TMJ pain, tension-type headache, hypertrophic (enlarged) masseter — V-shape aesthetics
- Typical dose: 25–50 units / side (50–100 units total)
- Detailed guide: Masseter botox Istanbul
Mentalis (Chin Tip)
- Location: at the chin tip (mental region), just below the lower lip
- Function: mimic muscle of the lower lip and chin tip
- Botox indications: cobblestone chin (orange-peel appearance), excessive chin activity, chin-tip surface roughness, asymmetry correction
- Typical dose: 4–10 units total (2–5 units per side)
- Aesthetic effect: smooths the chin surface, softens "sad smile" tension
Which One for Which Complaint?
| Complaint | Target Muscle | Notes |
|---|---|---|
| Teeth grinding + morning jaw pain | Masseter | Bruxism — multidisciplinary approach |
| TMJ pain, joint tenderness | Masseter (+ temporal) | TMJ disorder supportive treatment |
| I want a more oval / slimmer face | Masseter (if hypertrophic) | Aesthetic — needs evaluation |
| My chin tip looks like orange peel | Mentalis | Aesthetic correction |
| Chin tightens when I smile | Mentalis | Mimic correction |
| Combined TMJ package | Masseter + temporal + mentalis | Multidisciplinary treatment |
When Is Jaw Botox Indicated?
Medical Indications (Specialist Decision)
| Condition | Target Muscle | Botox Role |
|---|---|---|
| Bruxism (teeth grinding) | Masseter | Reduces clenching force, slows damage to fillings/crowns |
| TMJ disorder | Masseter + temporal | Relieves muscle load on the joint, improves limited opening |
| Tension-type headache | Masseter + temporal | Releases myofascial trigger points |
| Trismus (limited mouth opening) | Masseter | Reduces spasm, supports physiotherapy |
| Hemifacial spasm (selected cases) | Mentalis or masseter | Specific cases — neurology consult |
Aesthetic Indications
- Hypertrophic masseter — disproportionately large jaw angle (square-jaw → V-shape transition)
- Cobblestone chin (mentalis) — orange-peel appearance at the chin tip, more visible when smiling
- Asymmetry correction — balancing left–right jaw difference (limited effect)
- "Sad smile" correction (mentalis) — tension along the lower lip line
⚠️ Aesthetic caveat: Botox does not change bone shape — it only modulates muscle action. Anatomical imbalance (e.g. mandibular protrusion, retrognathia) is not corrected with botox; it needs oral surgery.
How Does Jaw Botox Work? (Mechanism)
Botulinum toxin type A blocks the release of acetylcholine — the chemical messenger that tells muscle fibers to contract. The result:
- The muscle functionally weakens (not paralyzed — only relaxed)
- Chewing or expression continues normally, but excessive contraction subsides
- After 3–6 months, the nerve terminals regenerate and the muscle resumes its original function
- With repeat sessions, muscle volume can also gradually decrease (especially in masseter aesthetics)
For mechanism details: Masseter botox mechanism.
Treatment Timeline
1. Clinical Evaluation
- Symptom history (pain, aesthetics, bruxism patterns)
- Medical history + current medications
- Clinical exam (muscle palpation, occlusion, TMJ assessment)
- If needed, 3D dental tomography (CBCT) for joint–bone status
- Decision on muscle, dose and combination package
2. Procedure (5–10 minutes)
- Skin cleaned with antiseptic
- Masseter: micro-needle injection at 3–5 points per side (25–50 U / side)
- Mentalis: 1–2 injection points at the chin (4–10 U total)
- Local anesthesia is usually unnecessary; most patients describe it as "an ant bite"
- No downtime — return to normal activity immediately
3. Effect Timeline
| Time | Effect |
|---|---|
| 0–3 days | No effect yet, muscle at full strength |
| 3–7 days | Initial relaxation perceived |
| 1–2 weeks | Peak effect — symptoms clearly reduced |
| 1–3 months | Stable plateau |
| 3–4 months | Effect begins to fade |
| 4–6 months | Time for repeat treatment |
4. Repeat Sessions
- 1st session → 3–4 months effect
- 2nd session → 4–5 months effect
- 3rd+ sessions → up to 5–6 months effect
- Aesthetic masseter cases: with repeat sessions, the muscle may show partial permanent atrophy of 15–25 % (Park 2003)
Jaw Botox Prices 2026 (Istanbul)
| Application | Description | 2026 Price (EUR / USD) |
|---|---|---|
| Mentalis (chin) botox | Cobblestone chin / mimic correction | €110 – €180 / $120 – $200 |
| Single-side masseter botox | Asymmetry correction | €140 – €220 / $150 – $240 |
| Bilateral masseter botox | Standard bruxism / TMJ | €200 – €380 / $220 – $410 |
| Masseter + mentalis combination | Aesthetics (V-shape + chin) | €280 – €470 / $310 – $510 |
| TMJ package (masseter + temporal) | Multidisciplinary TMJ care | €280 – €500 / $310 – $550 |
| 2-week follow-up touch-up | If dose adjustment needed | Free |
💡 Pricing factors: brand of toxin (Botox, Dysport, Xeomin), units used, combination with other muscles, clinic and clinician experience.
ℹ️ Insurance: Jaw botox (aesthetic or symptomatic muscle treatment) is not covered by Turkish national insurance (SGK), and rarely covered by international private insurance — usually self-pay.
Comparison: Masseter vs Mentalis vs Surgery
| Criterion | Masseter Botox | Mentalis Botox | Oral Surgery |
|---|---|---|---|
| Target | Chewing muscle, jaw angle | Chin mimic muscle | Jaw bone shape |
| Medical use | Bruxism, TMJ, headache | Cobblestone chin, mimic | Anatomical issues (protrusion, retrognathia, asymmetry) |
| Aesthetic effect | V-shape, face slimming | Chin surface smoothing | Permanent facial reshaping |
| Dose / procedure | 25–50 U / side | 4–10 U total | Surgery (osteotomy, implants) |
| Duration | 3–6 months (temporary) | 3–4 months (temporary) | Permanent |
| Recovery | 0 days — immediate | 0 days — immediate | 4–8 weeks |
| Cost range | €200–€380 / 4–6 mo | €110–€180 / 3–4 mo | Significantly higher + surgical course |
| Best for | Bruxism + aesthetic combo | Chin-tip dimpling | Bone-driven anatomical disorders |
💡 Decision logic: Temporary solution + muscle hyperactivity → botox (muscle chosen by complaint). Permanent solution + bone anatomy → surgery.
Jaw Botox in the TMJ Package (Multidisciplinary)
In TMJ disorders, jaw botox is not enough on its own — it sits inside a multi-component plan:
| Component | Role |
|---|---|
| Occlusal splint (night guard) | Physical tooth protection + load distribution |
| Masseter + temporal botox | Reduces muscle hyperactivity (3–6 months) |
| Physical therapy | Jaw exercises, ultrasound, manual therapy |
| Stress management | Reduces bruxism trigger |
| Short-course medication | Pain + spasm control |
| Mentalis botox (if needed) | Accompanying mimic tension |
Outcome: With this approach, 80–90 % of TMJ cases improve clearly within 3–6 months (Manfredini 2010 systematic review).
💬 Dr. Aykut Gürel: "When a TMJ patient expects 'one botox session and it's gone,' we redirect that expectation. Botox addresses only the muscular component of musculoskeletal complaints; if there is intra-articular disc pathology, we need MRI evaluation, splint therapy, and sometimes arthrocentesis. Botox is most effective as one component of a multidisciplinary plan."
Risks and Side Effects
Common (Transient, 1–2 weeks)
- Mild redness or bruising at injection sites
- Mild headache (2–3 days)
- Transient reduction in chewing strength (masseter, first week)
- Mimic softness (mentalis — temporary)
Less Common
- Dry mouth (3–7 days)
- Facial swelling (resolves within a week)
- Mild fatigue when chewing (masseter)
- Slight speech change (mentalis — rare)
Rare
- Visible asymmetry (wrong dose / location)
- Allergic reaction to the toxin protein
- Transient swallowing difficulty (diffusion — proper technique prevents this)
- Lower-lip drop (mentalis — wrong location)
Contraindications — When Not to Use Botox
- Pregnancy and breastfeeding
- Myasthenia gravis or similar neuromuscular disease
- Active infection at the injection site
- Known allergy to botulinum toxin
- Anticoagulant medication (relative — clinician decides)
⚠️ Medical disclaimer: All injection procedures carry risk. No outcome is guaranteed. Treatment is recommended only after specialist evaluation.
Aesthetic Outcome — What to Expect, What Not To
Realistic expectations:
- Masseter: jaw angle visibly slimmer in 2–4 weeks (especially in hypertrophic cases)
- Mentalis: chin tip smoother in 1–2 weeks, mimic tension reduced
- More balanced facial proportions
- After 2–3 repeat sessions, partial permanent atrophy (masseter, 15–25 %)
Unrealistic expectations:
- "Bone reshaping" — botox affects only muscle
- Visible change within 24 hours
- Permanent aesthetic in a single session
- Surgical-style "redrawing" of facial features — that requires oral surgery
- Weight loss or facial fat reduction (botox affects muscle, not fat)
Academic References
The medical content in this guide draws on the following independent academic sources:
-
Park MY, Ahn KY, Jung DS. Botulinum toxin type A treatment for contouring of the lower face. Dermatologic Surgery, 2003. https://pubmed.ncbi.nlm.nih.gov/12656819/
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Fedorowicz Z, van Zuuren EJ, Schoones J. Botulinum toxin for masseter hypertrophy. Cochrane Database of Systematic Reviews, 2013. https://pubmed.ncbi.nlm.nih.gov/24014147/
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Sunil Dutt C, Ramnani P, Thakur D, Pandit M. Botulinum toxin in the treatment of muscle specific Oro-facial pain: a literature review. Journal of Maxillofacial and Oral Surgery, 2015. https://pubmed.ncbi.nlm.nih.gov/26225059/
-
Patel AA, Lerner MZ, Blitzer A. IncobotulinumtoxinA injection for temporomandibular joint disorder. Annals of Otology, Rhinology & Laryngology, 2017. https://pubmed.ncbi.nlm.nih.gov/28466662/
-
Tan EK, Jankovic J. Treating severe bruxism with botulinum toxin. Journal of the American Dental Association, 2000. https://pubmed.ncbi.nlm.nih.gov/10665254/
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Manfredini D, Lobbezoo F. Relationship between bruxism and temporomandibular disorders: a systematic review. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2010. https://pubmed.ncbi.nlm.nih.gov/20451831/
For a personalised consultation on jaw botox (masseter, mentalis or combined) and the right muscle choice, contact Derya Dental Clinic in Maltepe, Istanbul. Get in touch or schedule via WhatsApp.
Last updated: 6 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.





