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Do you grind your teeth?

Do you often wake up with a dull headache or a sore jaw? Do you sometimes find yourself clenching your teeth? Until you experience pain or have a dental checkup, you may not realize that you have a condition called "bruxism," a habit of grinding or clenching the teeth.

People who grind or clench their teeth may wake with a headache, earache or toothache. Their facial muscles may be sore and the jaw joints tender. Besides causing discomfort, grinding can eventually damage dental restorations and may loosen teeth. Bruxism also can cause damage to the temporomandibular joints - the joints on each side of the mouth that connect the lower jaw to the skull.

The pressure from clenching and grinding can cause cracks or fractures in the teeth. As the tooth enamel is worn away, the underlying layer of dentin may be exposed. This causes the tooth to become sensitive to temperature changes and pressure.

Although the causes of bruxism are not really known, several factors may be involved. Stressful situations, problems in sleeping, an abnormal bite, and crooked or missing teeth may contribute.

Regular dental checkups are important to detect damage in the early stages. Your dentist can diagnose and treat irregular wear on teeth and determine the source of facial pain that may result from bruxism.

Based on your dentist's diagnosis, one or more treatments may be recommended. Your dentist may suggest a nightguard that can be worn while sleeping. Custom-made by the dentist from soft material to fit your teeth, the nightguard slips over the teeth in one jaw and prevents contact with the opposing teeth.

If stress seems to be a major cause of bruxism, it may be helpful to find ways to relax. If you have difficulty handling stress, counseling may point to effective ways of dealing with stressful situations.

An abnormal bite, one in which teeth do not fit well together, may lead to grinding. Treatment may involve reducing the "high spots" on one or more teeth. For serious cases, your dentist may suggest reshaping or reconstructing the biting surfaces with inlays or crowns.

Please contact the ADA if you have questions about this article.

©2010 American Dental Association. All rights reserved. Reproduction or republication is strictly prohibited without the prior written permission from the American Dental Association.

05/02/2005

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