What Is Masseter Botox Used For? What Are Its Benefits and Potential Risks?

Assoc. Prof. Burak Cezairli
Written by DentAkademi Editorial Team
Medically reviewed by Assoc. Prof. Burak Cezairli
Last updated:
Key Takeaways

Masseter Botox is a popular cosmetic procedure applied to slim the facial contour and create a more aesthetically pleasing appearance in individuals with a broad or square jawline. It is also an effective method for treating functional issues such as teeth grinding (bruxism) and jaw joint pain. However, if not performed by a professional, it may carry certain risks.

What Is Masseter Botox?

Masseter Botox is a type of botulinum toxin injection used to enhance facial aesthetics and reduce muscle volume in the jaw area. Since it targets the masseter muscle—located at the corners of the lower jaw and responsible for chewing—it is often referred to as jaw Botox. In some individuals, the masseter muscle becomes overdeveloped, resulting in a broader, more angular jawline. The goal of the procedure is to reduce the muscle’s volume, creating a slimmer, V-shaped jawline. This technique may also help relieve symptoms related to bruxism (teeth grinding).

Why Is Masseter Botox Performed?

This procedure is performed for both cosmetic and medical purposes. The main objective is to weaken the jaw muscles to contour the face and alleviate problems caused by excessive clenching.

Cosmetic PurposesFunctional (Medical) Purposes
Slimming a wide or square jawlineReducing teeth grinding (bruxism)
Creating a V-shaped facial contourRelieving TMJ-related jaw pain
Improving facial symmetryReducing tension headaches/migraines
Enhancing overall facial aestheticsPreventing excessive clenching damage

Benefits and Possible Risks of Masseter Botox

While Masseter Botox offers notable aesthetic benefits, it may also cause temporary side effects. These risks increase if the procedure is not performed by a skilled professional. On the other hand, when done by experienced practitioners, it is considered a safe treatment.

Benefits include:

  • A slimmer and more symmetrical facial appearance
  • Relief from pain caused by clenching
  • Non-surgical aesthetic improvement
  • Quick recovery time
  • Enhanced smile aesthetics

Potential risks include:

  • Temporary difficulty chewing
  • Smile asymmetry
  • Mild swelling and bruising
  • Aesthetic irregularities due to under- or over-treatment
  • Gradual reduction in effect, requiring repeat treatments

How Is Masseter Botox Performed?

Before the procedure, the patient is examined to assess the size of the masseter muscle. Local anesthesia may be applied if desired. During the procedure, a special Botox solution is injected into the muscle at several points. The entire process takes about 10–15 minutes, and patients can immediately return to their daily routine.

Step-by-step procedure:

  • Consultation and Planning: The specialist evaluates the patient’s jaw structure and the size of the masseter muscle. Injection points are determined based on facial analysis.
  • Cleansing and Anesthesia: The area is cleaned and optionally numbed with a topical anesthetic cream.
  • Injection: Using very fine needles, the Botox is injected into the pre-marked points. A slight pricking sensation may be felt.
  • Post-Care: Gentle pressure may be applied to the treated area. Usually, no special aftercare is required.

Masseter Botox Prices

The cost of Masseter Botox varies depending on the clinic, the brand of Botox used, the number of units injected, and the experience of the practitioner. It is advisable to have the procedure done in clinics approved by the Ministry of Health and performed by certified physicians. For accurate and up-to-date pricing, it’s best to consult the clinic directly.

Frequently Asked Questions About Masseter Botox

Does Masseter Botox change your face shape?

Yes, especially in individuals with a square or broad jawline, Masseter Botox can slim the lower part of the face and create a more oval appearance.

When performed correctly by an experienced specialist, it does not affect your smile. However, in rare cases, if the Botox spreads to unintended muscles or if too much is used, temporary asymmetry or changes in facial expressions may occur.

Prices vary depending on the clinic, the practitioner’s experience, and the brand of Botox used. A consultation and preliminary examination are recommended for exact pricing.

If you experience difficulty smiling or facial asymmetry, this is usually temporary and resolves within a few weeks. You should inform your practitioner and seek follow-up evaluation.

Mild and temporary difficulty in chewing is normal, especially during the first few days. This occurs due to the decreased activity of the masseter muscle. If the issue persists or worsens, consult your doctor.

It is recommended to avoid chewing gum for the first few days after the procedure. Overuse of the treated muscle may reduce the effectiveness of the Botox or interfere with muscle relaxation.

It is advised not to eat during the first hour after the procedure. After that, you may return to your normal diet.

The masseter is a strong chewing muscle located at the side of the jaw, responsible for enabling jaw movement during biting and chewing.

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