Sleep bruxism, also known as nocturnal tooth grinding, is the medical term for clenching or grinding teeth during sleep. Sleep bruxism A type of movement disorder that occurs during sleep. nocturnal tooth grindingis a common condition – one survey estimates that 8% of adults grind their teeth at night and a study shows that more than a third of parents report symptoms of bruxism in their children. Occasional nocturnal tooth grinding may not be harmful but when it occurs regularly, it may be associated with moderate to severe dental damage, facial pain, and disturbed sleep. Although the causes of bruxism are unknown. One study links it with such factors as: Anxiety. Stress. alcohol consumption. Cigarette smoking. Caffeine. Sleep apnea. Snoring. Excessive daytime sleepiness. Importantly, psychiatric or psychological factors do not play a role in most cases. Use of certain medications, including amphetamines, are also associated with episodes of bruxism. Sleep apnea may also be related to nocturnal tooth grinding. And evidence suggests that treating sleep apnea can help alleviate nocturnal tooth grinding. People who have nocturnal tooth grinding can also suffer headaches, earaches, jaw pain, jaw joint disorders and damaged teeth. Sleep bruxism may also be linked with other medical conditions. And have an impact on quality of life. If you feel you may suffer from nocturnal tooth grinding, talk to your doctor about ways to treat it and see Treatment and Coping. European Dental Center; best dental clinic in Jordan provide this information about Sleep bruxism.