For milk teeth and static caries that have not formed cavities and will be replaced by permanent teeth within one year, fluoride, silver nitrate and other medications can be used for localized treatment of the teeth, and surgical treatment is required for more serious cases. 1. Fluoride: including 8% stannous fluoride solution, 75% sodium fluoride glycerin paste, acidic sodium fluorophosphate solution and so on. Applying fluoride on the surface of teeth can increase the concentration of fluoride ions, increase the acid resistance of teeth, promote the remineralization of early caries and stop early caries. 2. Silver nitrate: commonly used preparations include 10% silver nitrate and ammonia silver nitrate. The application of silver nitrate in the area of caries can solidify organic matter, kill bacteria, block enamel pores and dentin tubules, close the lesion area and terminate caries. Patients who develop severe carious cavities require a high-speed turbine drill to completely remove the discolored and infected tissues from the tooth, and then fill the tooth with a filling material. Currently, the clinical treatment of pulpal inflammation is mainly root canal therapy to control pain and spread of inflammation. The above medicines are for reference only, specific dosage and usage should follow the doctor’s instructions. When dental caries occurs, you should seek medical advice and follow the doctor’s instructions.