Caries is not treated, such as tooth replacement, should be based on the caries situation, such as children close to the tooth replacement period, and caries is not serious, you can wait for the replacement of teeth. 1. caries is not serious and close to the period of tooth replacement: due to the teeth are about to be replaced, generally follow the doctor’s advice not to treat and so on tooth replacement, at this time to pay attention to timely brushing, cleaning the oral cavity, to avoid the emergence of pain and other symptoms affecting the replacement of teeth. 2. Serious caries: at this time, if caries is not treated in time, caries will become more and more serious, the pain and swelling of the teeth may increase dramatically, prone to apical inflammation, pulpitis and so on. Then affect the dental nerve and permanent teeth development. If the pediatric caries, it is recommended to go to the hospital in time, under the guidance of a professional doctor for treatment.