Bruxism is chronic, involuntary grinding or clenching of teeth. It usually occurs during sleep, but it may also occur while awake.
The exact cause of bruxism is unknown, but it is believed to be related to:
Risk factors that increases your chance of getting bruxism include:
Symptoms may include:
The doctor or dentist will ask about your symptoms and medical history. An examination of your teeth and jaw will be done. With bruxism, teeth will have flattened tips, excessive wear, or thin enamel.
Methods of treatment include:
This method focuses on changing behavior through various techniques, such as:
Your dentist may recommend a protective mouth appliance, such as a night guard. It can absorb the pressure of constant night grinding.
Medication is only recommended for short-term use. Medications may include:
Bruxism that is not treated may result in gum damage, tooth loss, and jaw-related disorders.
Academy of General Dentistry
American Dental Association
Canadian Dental Association
The Canadian Dental Hygienists Association
Bruxism. University of Virginia Health System website. Available at: http://uvahealth.c... . Accessed January 22, 2013.
Chang H. Botulism toxin: use in disorders of the temporomandibular joint. Dent Today . 2005;24:48,50-1; quiz 51.
Tan EK, Jankovic J. Treating severe bruxism with botulinum toxin. J Am Dent Assoc . 2000;131:211-216.
Teeth grinding. American Dental Association's Mouth Healthy website. Available at: http://www.mouthhealthy.org/en/az-topics/t/teeth-grinding.aspx. Accessed January 22, 2013.
Last reviewed September 2012 by Michael Woods, MD
Last Updated: 1/22/2013