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Jaw Botox Istanbul: Mentalis, Masseter & TMJ Treatment Guide (2026)

Aykut Gürel, DDS, PhD
Aykut Gürel, DDS, PhD

Oral & Maxillofacial Surgeon

14 min read
Updated: May 6, 2026
Jaw botox treatment — mentalis, masseter and TMJ — Derya Dental Clinic Istanbul

Did You Know?

Jaw botox is the injection of botulinum toxin type A into specific muscles around the jaw to temporarily reduce excessive contraction. The English term "jaw botox" actually covers two different applications: the masseter (chewing) muscle at...

✍️ 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


01

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.


02

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?

ComplaintTarget MuscleNotes
Teeth grinding + morning jaw painMasseterBruxism — multidisciplinary approach
TMJ pain, joint tendernessMasseter (+ temporal)TMJ disorder supportive treatment
I want a more oval / slimmer faceMasseter (if hypertrophic)Aesthetic — needs evaluation
My chin tip looks like orange peelMentalisAesthetic correction
Chin tightens when I smileMentalisMimic correction
Combined TMJ packageMasseter + temporal + mentalisMultidisciplinary treatment

03

When Is Jaw Botox Indicated?

Medical Indications (Specialist Decision)

ConditionTarget MuscleBotox Role
Bruxism (teeth grinding)MasseterReduces clenching force, slows damage to fillings/crowns
TMJ disorderMasseter + temporalRelieves muscle load on the joint, improves limited opening
Tension-type headacheMasseter + temporalReleases myofascial trigger points
Trismus (limited mouth opening)MasseterReduces spasm, supports physiotherapy
Hemifacial spasm (selected cases)Mentalis or masseterSpecific 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.


04

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:

  1. The muscle functionally weakens (not paralyzed — only relaxed)
  2. Chewing or expression continues normally, but excessive contraction subsides
  3. After 3–6 months, the nerve terminals regenerate and the muscle resumes its original function
  4. With repeat sessions, muscle volume can also gradually decrease (especially in masseter aesthetics)

For mechanism details: Masseter botox mechanism.


05

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

TimeEffect
0–3 daysNo effect yet, muscle at full strength
3–7 daysInitial relaxation perceived
1–2 weeksPeak effect — symptoms clearly reduced
1–3 monthsStable plateau
3–4 monthsEffect begins to fade
4–6 monthsTime 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)

06

Jaw Botox Prices 2026 (Istanbul)

ApplicationDescription2026 Price (EUR / USD)
Mentalis (chin) botoxCobblestone chin / mimic correction€110 – €180 / $120 – $200
Single-side masseter botoxAsymmetry correction€140 – €220 / $150 – $240
Bilateral masseter botoxStandard bruxism / TMJ€200 – €380 / $220 – $410
Masseter + mentalis combinationAesthetics (V-shape + chin)€280 – €470 / $310 – $510
TMJ package (masseter + temporal)Multidisciplinary TMJ care€280 – €500 / $310 – $550
2-week follow-up touch-upIf dose adjustment neededFree

💡 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.


07

Comparison: Masseter vs Mentalis vs Surgery

CriterionMasseter BotoxMentalis BotoxOral Surgery
TargetChewing muscle, jaw angleChin mimic muscleJaw bone shape
Medical useBruxism, TMJ, headacheCobblestone chin, mimicAnatomical issues (protrusion, retrognathia, asymmetry)
Aesthetic effectV-shape, face slimmingChin surface smoothingPermanent facial reshaping
Dose / procedure25–50 U / side4–10 U totalSurgery (osteotomy, implants)
Duration3–6 months (temporary)3–4 months (temporary)Permanent
Recovery0 days — immediate0 days — immediate4–8 weeks
Cost range€200–€380 / 4–6 mo€110–€180 / 3–4 moSignificantly higher + surgical course
Best forBruxism + aesthetic comboChin-tip dimplingBone-driven anatomical disorders

💡 Decision logic: Temporary solution + muscle hyperactivity → botox (muscle chosen by complaint). Permanent solution + bone anatomy → surgery.


08

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:

ComponentRole
Occlusal splint (night guard)Physical tooth protection + load distribution
Masseter + temporal botoxReduces muscle hyperactivity (3–6 months)
Physical therapyJaw exercises, ultrasound, manual therapy
Stress managementReduces bruxism trigger
Short-course medicationPain + 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."


09

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.


10

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)

11

Academic References

The medical content in this guide draws on the following independent academic sources:

  1. 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/

  2. 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/

  3. 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/

  4. 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/

  5. Tan EK, Jankovic J. Treating severe bruxism with botulinum toxin. Journal of the American Dental Association, 2000. https://pubmed.ncbi.nlm.nih.gov/10665254/

  6. 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.

Related Treatment Pages

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.

Frequently Asked Questions

Common Questions

Is jaw botox the same as masseter botox?
No, but they are closely related. "Jaw botox" is often used colloquially for masseter botox (chewing muscle, jaw angle), but mentalis botox (chin muscle) is also in the jaw-botox category. Which one you need depends on your symptoms — a specialist evaluation is essential. Detail: Masseter botox guide.
Does jaw botox hurt?
No — most patients describe it as "an ant bite." The needle is very fine (30–32G), and each injection lasts 5–10 seconds. Local anesthesia is usually unnecessary; topical numbing cream is enough for sensitive patients.
Is botox enough for my TMJ pain?
Usually no. TMJ disorders need a multidisciplinary approach: stress management, physical therapy, night guards, pain control, and sometimes occlusal correction. Botox is a supportive tool — particularly effective when masseter or temporal muscle spasm is dominant. It is rarely a complete solution on its own. Detail: TMJ treatment.
Will jaw botox slim my face?
If you have a hypertrophic (enlarged) masseter, yes — visible slimming at the jaw angle in 2–4 weeks, with a more oval / V-shape look. Mentalis botox does not slim the face; it improves chin-tip texture. Botox does not affect fat tissue.
How often is repeat treatment needed?
The first session lasts 3–4 months, repeats can extend to 4–6 months. If symptoms or aesthetic effect fade, your specialist plans a repeat. Some patients continue regular treatment for years, others stop after a single session that resolved their complaints (high individual variation).
Does botox replace night guards in bruxism?
No, they complement each other. Botox (masseter) reduces clenching force; the night guard physically protects tooth surfaces. In severe bruxism, both are used together — botox manages daytime clenching, the guard prevents nighttime tooth wear.
What should I avoid after jaw botox?
First 4 hours: avoid lying face-down, do not massage your face, no intense exercise. First 24 hours: no alcohol (bruising risk), no excessive heat (sauna, steam bath). After that, normal life resumes.
Does mentalis botox affect my speech?
With proper dose and technique, no. The mentalis is a mimic muscle and plays a small role in articulation. Excess dose may affect lower-lip movement — that's why conservative starting doses and a 2-week follow-up matter. Working with a certified clinician minimizes dose errors.
Can jaw botox replace surgery?
No — they address different problems. Botox affects muscle; bony anomalies (e.g. mandibular protrusion, retrognathia, asymmetry) do not change. Those require orthognathic surgery. Botox is temporary; surgery is permanent.
Which doctor performs jaw botox?
In Türkiye, jaw botox can be performed by oral and maxillofacial surgeons, plastic surgeons, dermatologists, ENT specialists, and dentists with botox certification. For bruxism / TMJ indications, oral surgeons + dentists are preferred; for purely aesthetic cases, plastic surgeons or dermatologists are common.
Can botox damage my teeth?
No — there is no direct effect on bone or teeth. In fact, masseter botox reduces clenching force, lowering the fracture risk of existing fillings, crowns and natural teeth.
Can pregnant women have jaw botox?
No. Pregnancy and breastfeeding are an absolute contraindication. The effects of botulinum toxin during pregnancy have not been adequately studied, so it is avoided. Treatment can resume after breastfeeding ends.
Can I eat right after jaw botox?
Yes, immediately. Effect onset is 3–7 days, so chewing is normal at first. At peak effect (1–2 weeks) we suggest taking small bites of hard or chewy foods (tough meat, dense bread).
Is high-dose jaw botox dangerous?
Excess dose increases the risk of chewing weakness + limited mouth opening + mimic disturbance + asymmetry. Typical upper limits in Türkiye are 50 U / side for masseter and 10 U total for mentalis. Working with a certified clinician minimizes dose errors.
Will it look natural?
With correct dose and technique, there is no "done" look within a few days — only the jaw angle appears softer (masseter) or the chin smoother (mentalis). Facial expression is preserved (masseter is not a mimic muscle; mentalis is treated at low dose to preserve mimic). ---
Aykut Gürel, DDS, PhD

Author

Aykut Gürel, DDS, PhD

Oral & Maxillofacial Surgeon

Dr. Aykut Gürel is an Oral & Maxillofacial Surgeon who graduated from Istanbul University and completed his residency at Marmara University. He specializes in dental implantology, zygomatic implant surgery, and digitally guided surgical planning.

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