Sleep teeth grinding, may be due to abnormal teeth clenching or too excited before going to bed so that nerve dysfunction and other factors lead to a strong continuous contraction of the chewing muscle, the upper and lower teeth clench and make a loud sound, the phenomenon of sleep teeth grinding. It may also be caused by pathological factors, such as intestinal parasites, gastrointestinal dysfunction, etc. Common causes and treatments include: 1. Physiological factors: uncoordinated teeth bite, such as tooth loss, overgrown teeth, unilateral chewing, etc., can cause the phenomenon of grinding teeth in bed. You can wear dental brackets to protect your teeth and promptly replace bad restorations in your mouth to adjust the abnormal bite; 2, psychological factors: if you are overly nervous, anxious or in an abnormally excited mood before going to sleep, it will cause an imbalance of excitation and inhibition in the cerebral cortex, causing irregular movements of the chewing muscles, resulting in grinding teeth in bed. The phenomenon of grinding teeth in bed can be improved by changing living habits, relieving work stress, relaxing before going to bed, and ensuring the quality of sleep. If there are strong and persistent bad emotions, it is recommended to find professional psychological guidance for treatment; 3, pathological factors: when parasites infect the intestine, they will move in the intestine and secrete a variety of toxins, thus stimulating the nerves and causing nerve excitement, patients can appear to grind their teeth, can take oral albendazole, roundworm repellent and other drugs under the guidance of doctors to expel gastrointestinal parasites and improve the symptoms. Gastrointestinal dysfunction can lead to poor digestion, so that food stays in the gastrointestinal can not be completely digested, when the gastrointestinal stimulation and transmission to the brain, can cause brain excitement, which leads to sleep grinding teeth, can follow medical advice to take domperidone, mosapride and other pro-gastric power drugs to improve indigestion. In addition, if a child sleeps with teeth grinding, it may also be due to a lack of vitamin D, calcium and other nutrients, it is recommended that a regular, balanced diet, more sunshine, etc., if necessary, you can follow medical advice to take chewable calcium tablets.