Teeth grinding mainly refers to the intermittent contraction of the jaw muscles, accompanied by regular chewing-like movements will appear grinding characteristics, mainly in sleep or awake, there is unconscious upper and lower teeth grinding or clenching each other. Human beings are in the tooth replacement period between 6 and 13 years old, in order to adapt to the grinding of upper and lower teeth will have the physiological phenomenon of grinding teeth. But after the period of tooth replacement, if there is still grinding teeth at night or grinding teeth during the day, it is a pathology, mainly related to poor digestion, the phenomenon of food accumulation and gastritis, intestinal parasites, frequent dreaming and other factors, some cases need to be corrected in a timely manner recommended Chinese medicine dialectical treatment. Children with intestinal parasites are advised to take regular oral deworming medication to avoid the effects on growth and development and nutrition.