Bruxism - Signs and Symptoms

Medical Author: Melissa Conrad Stoppler, MD
Medical Editor: Jay W. Marks, MD

The habit of grinding, gnashing, grating, or clenching the teeth is termed bruxism, and millions of adults and children are affected by this condition. While its exact cause is unknown, most experts believe that bruxism can occur as a response to increased psychological stress.

Bruxism involves any type of forceful contact between the teeth, whether silent and clenching, or loud and grating. Estimates vary regarding the number of people who suffer from this condition and range from 50-95% of the adult population. Approximately 15% of all children also acquire this condition. Many people are not aware that they have this condition because they grind their teeth at night while asleep, although bruxism can occur during daytime hours as well.

Certain sleep disorders are accompanied by bruxism. Drinking alcohol and taking certain medications (for example, antidepressants) may worsen the bruxism. Malocclusion (improper alignment of the teeth) may also play a causative role or may determine the severity of symptoms related to bruxism. Children may develop bruxism as a response to a cold or other infection and are more likely to develop it when their parents are affected. Some studies show that persons whose personalities may be described as compulsive, controlling, precise, or aggressive have an increased incidence of bruxism.

Medically Reviewed by a Doctor on 12/1/2014