Children appear worm teeth, teeth with holes, is the manifestation of dental caries, children worm teeth holes according to the location of different, there are different treatment methods. 1. The cavity of milk teeth is not deep: when it meets external stimulation to form soreness, composite resin and so on can be applied to repair the cavity. Use a low-speed ball drill to slowly remove the discolored tooth tissue. 2. The cavity is close to the pulp angle: zinc polycarboxylate cementum can be used to fill the bottom of the cavity before filling with glass ionomer cementum. 3. Caries cavity exposed pulp: need to remove the pulp root canal disinfection to complete the root canal treatment, removal of the need for local anesthesia before, after closing the cavity. Due to the short crowns of children’s milk teeth, excessive saliva secretion in the mouth, filling materials are not easy to fix, it is best to apply silver amalgam and other repair of posterior teeth. Children with worm tooth cavities are advised to go to the hospital in time, cooperate with the doctor’s examination, probe the location and treat the symptoms. Cultivate children’s good oral habits, morning and evening on time brushing. Avoid sweet and sour flavored carbonated beverages in your regular diet. Do not consume too much candy as well as soft foods.