Overview. Bruxism (BRUK-siz-um) is a condition in which you grind, gnash or clench your teeth. If you have bruxism, you may unconsciously clench your teeth when you're awake (awake bruxism) or clench or grind them during sleep (sleep bruxism). Sleep bruxism is considered a sleep-related movement disorder..
“Teeth grinding during sleep (bruxism) is also an intriguing sleep disorder. Indeed, why would a person tense his muscles in a dream if his body is relaxed at this time, and the brain is immersed in pleasant dreams. Most often, children grind their teeth in their sleep. In one study, at least one episode of sleep bruxism was reported by parents in 50% of their intoxication. Often the tendency to grind teeth during sleep is inherited - 20-50% of people with bruxism have relatives who also grind their teeth.
“In children, bruxism usually does not lead to any negative consequences, except for the erasure of the enamel on the contact surfaces of the teeth. In adults, teeth grinding during sleep can be accompanied by a change in bite, loosening of teeth, morning headache due to nighttime overexertion of masticatory muscles.
book -
Sleep bruxism is an involuntary mandibular movement with tooth grinding or clenching occurring during sleep that can lead to several dental, oral, and facial complications.1 according to the American academy of sleep medicine, the diagnosis of sleep bruxism is based on the report of tooth grinding or clenching in combination with at least 1 of the following signs: abnormal tooth wear, sounds associated with bruxism, and jaw muscle discomfort.2,3 sleep bruxism is reported in up to 20% of children younger than 11 years of age.1 this is probably an underestimate and may indicate only clinically significant bruxism. The prevalence decreases with age. Polysomnography studies in adults have investigated the sleep architecture in patients with bruxism. Whereas most adult studies have found no difference in the percentage of different sleep stages.
mayoclinic.org
Mary Williams "dream/sleep"
wikipedia