There is no such thing as the most effective treatment for children grinding their teeth at night, and the treatment needs to be based on the cause of the disease, such as calcium deficiency caused by the timely provision of symptomatic calcium supplements to assist in daily life care; because of parasitic infections caused by the timely provision of deworming treatment; because of the daytime emotional excitement or strenuous exercise in general does not require special treatment. 1. Because of calcium deficiency: children’s body for a long time lack of calcium may affect the development of teeth and the physiological function of the dental nerve. It is recommended to test the calcium content in the body in time, and follow the doctor’s instructions as soon as possible to give the symptomatic supplementation, such as oral calcium gluconate oral solution and so on. Remember to follow the doctor’s instructions strictly to ensure the safety of the medication. At the same time, daily care should be supplemented, such as sunbathing every day and eating calcium-rich food, such as eggs and milk, etc., which can help improve the above symptoms. 2. Due to parasitic infection: the presence of parasitic infection in children’s bodies can easily lead to the symptoms of nighttime teeth grinding. It is recommended to go to the hospital immediately to do relevant examinations, clear diagnosis, and then follow the doctor’s instructions to give deworming treatment, it is recommended that oral deworming drugs such as albendazole, according to the doctor’s instructions on the dosage and method of medication, to help improve the symptoms of the child. 3. Due to emotional excitement or strenuous exercise during the day: it can be relieved on its own, and generally no special treatment is needed. Parents should strengthen the child’s daily dietary care, avoid eating unclean food, regularly check the body’s nutritional status, and find abnormalities in time to consult a doctor.