The main method of treating dental caries is filling. It is to remove the carious tissues, make a certain hole shape, clean, disinfect, fill with filling materials, and restore the shape of the tooth defect, the age of caries can not continue to develop. Shallow caries filling has the best effect. In the treatment of medium and deep caries, after removing the decayed tissues, sometimes the bottom of the cavity is close to the pulp, so it is necessary to add a layer of pulp-protecting agent to the bottom of the cavity and then fill in the beginning. Sometimes the pulp is exposed after removing the decayed tissue, so it is necessary to take endodontic treatment before filling. Filling materials are mainly silver amalgam or composite filling resin. Milk teeth can be filled with glass ionomer cementum (temporary filling material) because of tooth replacement. Slit stage caries that have not formed cavities can be treated with medication that can achieve a certain degree of efficacy. Permanent teeth are often used to smear caries with sodium fluoride oder; milk teeth can be fluoridated with silver diamine (discoloration after smearing, so it is not used for permanent teeth). After the treatment, the caries may still recur and need to be rechecked every six months. Therefore, the earlier the treatment of caries, the better. If the gums are red, swollen, hot and painful, or there are chills and fever, there is foul smell in the mouth, or pus comes out of the tooth holes, the moss is yellow and greasy, and the pulse is stringy, it is wind-heat and solid fire, and the treatment is to clear and drain the solid heat of yangming. Formulas use: raw gypsum 30 grams, bamboo leaf 6 grams, raw gardenia 9 grams, silver flower 16 grams, forsythia 15 grams, red peony 10 grams, hu huanglian 9 grams, scutellaria baicalensis 9 grams, decocted with water. 2, if gums not swollen, its pain day light night heavy, emblem cold not hot, mouth no foul odor, tooth root easy to shake, tongue red less moss, pulse string fine number, for yin deficiency fire, treatment appropriate nourishing yin lowering fire. Formula: 25 grams of raw land, 10 grams of XuanShen, 12 grams of Maidong, 9 grams of Dampi, 9 grams of ZhiMu, 6 grams of cypress, 9 grams of hyssop, 10 grams of JinShiShi, 3 grams of cinnamon, decocted with water.