The muscles along the posterior jaw are used to chew and clench the teeth, and can become enlarged when the teeth are clenched while sleeping. Botox or Dysport is an effective treatment for reducing a prominent or asymmetric jaw line caused by enlarged muscles. The Botox or Dysport treatment reduces the size of the muscles injected, thereby smoothing the facial contour.
Using Botox or Dysport to reduce the size of a muscle is common and can be used for enlarged jaw muscles as well as calf muscles to improve body contouring. Botox blocks signals from the nerves to the muscles preventing contraction. By preventing contraction, the muscle will cease to grow in size and will begin to atrophy, reducing its prominence.
Before treatment the area will be cleansed and marked for injection. Typically, 15 - 50 units of Botox or Dysport with equivalent units are injected on each side of the face into the masseter muscle. This treatment should not have a major impact on biting or chewing. Patients who are interested in receiving Botox or Dysport to contour the jawline must be aware that the injection will only treat overactive masseter muscles and will not improve a squared jawline caused by bone structure. The goal of jawline slimming is to reduce a prominent, disproportionate, or asymmetric jawline by weakening the masseter muscles with Botox injections.
- Procedure time: 20 minutes
- Anesthesia: ice, vibration
- Pain level: Mild
- Recovery time: None
- Results: 1-2 weeks
- Treatment effects: lasting 3-4 months. Best seen with multiple treatments and maintenance.