Bruxism

Alternative names:

teeth grinding

Definition:

Bruxism is a condition involving grinding or clenching of the teeth during sleep.

Causes, incidence, and risk factors:

Bruxism (teeth grinding) occurs in about 15% of people. The teeth are ground together or the jaw clenched tightly during sleep. Bruxism can be mild and occasional or can be so frequent and/or violent that the teeth are damaged. It occurs most often in the early part of the night.

The cause in some cases is abnormal dental occlusion (the way the upper and lower teeth fit together when the person shuts the mouth). More often, the disorder is associated with anxiety, tension, and suppressed anger. Bruxism is usually worse after intake of alcohol.