Jaw slimming with masseter injections

A strong chewing muscle can make the lower face look square and heavy. Relaxing it with injections can soften the jawline over a few weeks. Here is what to expect.

How it works

The masseter is the muscle you feel at the back of the jaw when you clench. When it is large, often from clenching or grinding, the lower face looks wider.

Injections of botulinum toxin type A relax the muscle. Used less, it gradually becomes slimmer, and the face can look more oval. Many people also clench less.

When you see the result

The muscle relaxes within the first weeks, but the slimming shows gradually, usually over four to eight weeks. The effect then fades over months, and the plan is reviewed before repeating.

Possible side effects

Tenderness or a small bruise at the injection points, and a feeling of chewing fatigue with hard foods for a few weeks, are the most common. Less often, the smile can feel slightly different if the product spreads. Dose and placement by an experienced doctor matter.

Is it for you?

Not every wide jaw is muscle. Bone structure and fat also shape the lower face. Dr. Douaihy feels the muscle while you clench to see whether injections will help or whether contour work fits better.

Quick answers

How long does jaw slimming with injections take to show?

The slimming appears gradually, usually over four to eight weeks.

How long does masseter Botox last?

The effect usually lasts several months, then fades gradually. Repeat treatments are planned after a review.

Does it help with teeth grinding?

Many people clench and grind less after treatment. Your dentist should still check your teeth and bite.

Will it change my smile?

It should not when placed correctly. A slight change is a rare side effect and wears off.

Start with the “Prima Optima” Consultation

Dr. Douaihy examines you, writes your plan and gives you the exact price before anything is done. Monday to Friday, 9 a.m. to 9 p.m., in Dbayeh.

WhatsApp +961 70 609 650

This page is general information from the clinic, not a diagnosis or a medical prescription. Suitability, dose and aftercare are decided by Dr. Douaihy after examining you.