Bruxism and masseter muscle

Bruxism is the action of grinding one’s teeth, especially when asleep, due to the involuntary contraction of the masseter muscles (chewing muscles).

There are many long-term consequences:

The teeth become shorter and deteriorate due to this grinding. They are gradually filed down and can even break.
The lips gradually lose their visible volume due to the loss of the vertical dental support.
The temporomandibular joint can become sensitive, even painful, due to this permanent contraction during sleep.
You might even experience neck pain, connected with this involuntary hypertonicity.

The treatment offered by aesthetic medicine involves performing injections into the chewing muscles with the aim of relaxing them.

Quickly, this area becomes less active and the pain subsides.

This treatment can be performed as a complement to dental treatment (anti-grinding mouth guards).

The injections generally need repeating every six months, though they can be spaced further apart over the long term, and they can aesthetically reduce the volume of the lower face after a few sessions. “Forcing” the masseters to rest in this way makes them lose muscle fibres and therefore thickness.

The cheekbones, even without injections, become more visible because the mandibular angles are refined.

The fee charged for this type of treatment depends on the quantities of injections required, starting at 350 euros per session.

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FAQ — Your questions about bruxism and the masseter muscle

What is bruxism and how does the treatment work?
Bruxism is teeth grinding, most often during sleep, caused by involuntary contraction of the masseter muscles. The aesthetic treatment consists of relaxing injections into these chewing muscles.

What are the consequences of bruxism and what are the benefits of the treatment?
Bruxism wears down and can crack the teeth, reduces the apparent volume of the lips through loss of vertical dental support, can make the jaw joint sensitive or painful, and can cause neck pain. The treatment can complement dental care (anti-bruxism night guard).

What effects are seen after several sessions?
The muscle area relaxes quickly and the pain eases. After several sessions, the lower face becomes slimmer because resting the masseters reduces the muscle fibres; the cheekbones look more defined and the jaw angle finer.

How often should the treatment be repeated and how much does it cost?
The injections are generally repeated every 6 months, and this interval may lengthen over time. The fee depends on the number of injections needed and starts at 450 euros per session.