Teeth grinding can be seen in normal people, may also be occlusal disorders, periodontitis, etc., should consult a doctor in time to clarify the cause of the disease, and then carry out appropriate treatment. 1. Physiological conditions: normal people may grind their teeth when they stay up late, under stress and anxiety, and such people should relax and take appropriate physical exercise, which generally does not require special treatment. 2. Occlusal disorders: missing teeth, muscle spasm, unsuitable dentures can cause occlusal disorders, which can lead to night grinding, such patients should be treated for the causes of occlusal disorders. 3. Periodontitis: Periodontitis caused by plaque infection can also lead to teeth grinding, and there will be red and swollen gums, loose teeth and other symptoms, need to carry out periodontal systemic treatment, acute attack can use metronidazole, tetracycline and other drugs. All of the above drugs and operations should be used under the guidance of a doctor.