There are many causes of teeth grinding: 1, excessive tension and fatigue during the daytime work or study, emotional disorders; 2, suffering from parasitic diseases, stomach roundworms, causing digestive system dysfunction; 3, lack of calcium makes nerve dysfunction; 4, too excited, anxiety, depression, anger and other psychological factors; 5, misshapen teeth or gingivitis, periodontal disease, etc.; 6, incorrect posture at bedtime; For example, bending into a ball when sleeping will lead to teeth grinding, and covering the quilt to the head will also lead to teeth grinding. It is recommended that patients promptly consult the stomatology department, except for stomatological problems, and then go to the neurology department for psychological guidance and anti-anxiety and depression treatment, the patients themselves should learn to relax and keep happy.