The main reasons for adults to grind their teeth in bed are psychological factors and occlusal factors. Teeth grinding not only affects the teeth, but also damages the gums, which is very bad for oral health. Generally due to the state of mental tension, the symptoms of night grinding teeth often appear at night while sleeping. It is recommended that you must relax and exercise more, which will help to remove the symptoms of night grinding teeth. Some people have dental diseases in the mouth, such as caries. Periodontitis, misshapen jaws and missing and defective teeth, which will also have the symptom of grinding teeth in bed at night. Night grinding is very harmful, not only will cause tooth wear, but also make people more nervous. It can also affect the health of the temporomandibular joint. Therefore, once the symptoms of night grinding teeth, you must go to the hospital, to find out the specific cause, according to the cause to do specific treatment. For the treatment of night grinding teeth, the main thing is to relax before going to bed, correct some bad habits such as smoking, alcohol, etc., to supplement more nutrition, but also to relieve stress, adjust the state of mind, and treatment of diseases in the mouth. All these can relieve the symptoms of night grinding teeth.