Masseter botox for jaw clenching and face slimming: what to expect month by month
Équipe médicale Nuance Clinic
Masseter toxin sits between medicine and aesthetics: it treats bruxism and reshapes the lower face. This guide explains how dosing is decided, the realistic timeline for slimming, and the mistakes that cause an asymmetric smile or an over-hollowed cheek.
En bref
- Relieves clenching within two weeks; slimming takes 1–3 months.
- Dose must match muscle bulk, measured by palpation.
- Functional benefit for bruxism, tooth wear and tension headaches.
- Over-treatment over years can hollow the lower cheek.
De quoi s’agit-il
- The masseter is the thick chewing muscle at the angle of the jaw. Chronic clenching (bruxism) makes it hypertrophic, which widens the lower face and causes pain, headaches and tooth wear.
- Toxin partially weakens the muscle so it relaxes and, over months, reduces in bulk.
À qui cela s’adresse
- Teeth grinding, morning jaw stiffness, temple headaches
- A wide, square lower face caused by muscle rather than bone or fat
- Patients with tooth wear or dentist-diagnosed bruxism
- Not suitable in significant chewing weakness or certain temporomandibular joint disorders without dental assessment
Produits utilisés
Original licensed botulinum toxin, typically 20–30 units per side depending on muscle bulk
Déroulé du traitement
- Palpation of the muscle while you clench, to map bulk and safe injection zones.
- Two to three deep injection points per side.
- No anaesthesia usually required.
Sécurité
- Injection must stay within the muscle body and away from the risorius to avoid an asymmetric smile.
- Dose is matched to muscle bulk; excessive dosing can cause chewing fatigue or a hollow cheek.
Avant le rendez-vous
No specific preparation; mention any TMJ diagnosis or dental treatment plans.
Soins après le traitement
Avoid massaging the area for 24 hours; chewing normally is fine.
Résultats et durée
- Clenching relief within 1–2 weeks.
- Visible slimming from week 4–6, maximal at 3 months.
- Repeat treatments give progressively longer intervals.
Effets indésirables et risques possibles
- Temporary chewing fatigue when eating hard foods.
- Uncommon: asymmetric smile if product spreads, hollowing with excessive long-term dosing.
- Bruising at injection points.
Suivi
Review at 4 weeks; dose adjusted at the next session based on response.
Questions sur ce traitement
Will my face look thinner immediately?
No. Pain relief comes first; visible slimming takes four to eight weeks as the muscle reduces.
Can I still chew normally?
Yes. Some patients notice fatigue with very hard food in the first weeks, which resolves.
Does it help headaches?
Often yes, when headaches originate from clenching and temporal muscle tension.
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