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Cosmetic Dentistry

Teeth grinding and tension headaches: relieving the chewing muscle.

Nocturnal teeth grinding damages teeth and tenses the jaw. A targeted treatment of the chewing muscle can relieve the pressure.

Dr. Nazanin Böhle · HOS Editorial
4 min read8 February 2026

The problem: bruxism

With bruxism, those affected clench and grind — often at night and unconsciously — with considerable force. The consequences range from worn-down teeth to jaw joint problems and tension headaches. The cause is often an overactive chewing muscle (musculus masseter).

How the treatment works

During the treatment, a muscle-relaxing agent is injected in a targeted way into the chewing muscle. This makes the muscle weaker, not non-functional — chewing remains possible, but the unconscious, extreme clenching force decreases. This relieves the teeth and jaw joint.

A double effect

Because the chewing muscle helps shape the face, a very strong masseter can visually create an angular, broad lower-jaw profile. The treatment therefore often also has a slightly face-harmonising effect.

Procedure & effect

  • Short treatment, usually a few minutes
  • The effect does not set in immediately, but over a few days
  • The effect is temporary — a top-up after a few months is common
  • No downtime, normal everyday life right afterwards

What the treatment is not

Botulinum toxin on the chewing muscle treats the symptom, not necessarily the cause. If stress or a misalignment lies behind it, for example, that should be taken into account too. A combination with a grinding splint is often advisable — we discuss this individually.

Our conclusion

For many of those affected, botulinum toxin on the chewing muscle is an effective, gentle relief — as part of a well-thought-out concept, not as an isolated quick fix.

Important note on off-label use

Botulinum toxin is not officially approved for treatment of the chewing muscle — this is what is known as off-label use. It is only considered when approved therapies such as splint therapy, physiotherapy or stress management do not work sufficiently. Botulinum toxin is a strictly prescription-only medicine; its use requires corresponding further training. Before any treatment we inform you in detail about the benefits, limits and possible side effects.

This article is for general information only and does not replace individual dental advice. Whether and which treatment is right for you is something we determine in a personal consultation based on your individual situation.

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