Face & skin clinic

Jaw Clenching
& Masseter

Injections into the masseter muscle for clenching, grinding and jaw ache. £340, lasting three to four months. The one treatment on the face and skin list that is genuinely dental — and often the reason someone stops cracking teeth.

  • £340 Price
  • 3–4 months Lasts
  • 1–2 weeks Effect from
  • Recommended too Night guard

Why a dental clinic offers this

Because the muscle it treats is the one that breaks teeth. Patients arrive complaining of morning jaw ache, temple headaches and a jaw that is tired by lunchtime, and are found to have flat wear facets, cracked cusps and a square jawline from muscle hypertrophy. That is one problem, not three.

Relaxing the masseter reduces the force available, which relieves the ache within two weeks and protects the teeth and any dentistry on them. There is a cosmetic consequence too — the jawline narrows over two or three treatments — which some people want and others do not, so we discuss it before rather than after.

It is not a replacement for a night guard, and we would almost always do both: the injections reduce the force, the guard takes what is left. Together they are the difference between replacing crowns every six years and not.

Common questions

Over two or three treatments the jawline narrows as the muscle reduces in bulk. For many people that is a welcome side effect and for some it is the reason they came. If you would rather it did not happen, say so and we will use a lower dose.

Yes. The dose reduces maximum clenching force, not normal function. A few people notice steak and chewy bread being more effort for the first fortnight; it settles.

Where headaches are genuinely muscular in origin — temples, worse in the morning, associated with clenching — a good number of patients report a substantial improvement. It is not a treatment for migraine itself and we will not present it as one.

Related treatments

Book a consultation

A written plan with fixed prices before anything starts, at either clinic. Ring us or book online — reception can usually find something while you are on the call.