1. What is bruxism?

Bruxism is the involuntary clench of teeth, prolonged contact of the tooth surfaces.

2. Types, symptoms and causes of bruxism

There are two types of bruxism

  • Clenching: To clench our teeth against each other.
  • Grinding: Grinding the teeth making short lateral movements and at the same time clenching.


  • Headache
  • Muscle contractures
  • Insomnia
  • Earache


  • Stress
  • Not stable occlusion
  • Bad teeth position that contributes to non adequate contacts between them.

3. Treatment

Night guard

  • A night guard is a resin guard that is used during the night for treating bruxism. It intends to position the jaw in a stable and secure three-dimensional position.
  • Avoiding contact between teeth, the jaw positions it self in a ideal articular relation, therefore the muscle loses some tone contributing for a more relaxed position.