Early symptoms of dental caries in children can be treated by medication, filling method and grinding method as prescribed by the doctor. 1. Medication: The method of using medication to inhibit the development of dental caries on the basis of grinding away caries is applicable to the early stage of permanent teeth that have not yet become cavities, and medication can be used as prescribed by the doctor, such as ammonia silver nitrate and sodium fluoride. 2. Filling method: partly related to the low degree of calcification of enamel of milk teeth, at this time, filling method can be taken to restore the shape of the tooth and prevent caries from continuing to develop. 3. Abrasion method: Abrasion method is more suitable for teeth with wide area of caries, which can grind out the tip of the tooth, the edge of the tooth, and the surface layer of carious tissues, so as to achieve the purpose of restraining caries from continuing to develop, and can be combined with medication for treatment after abrasion. Children in the early stages of dental caries in the diet must pay attention to control the intake of sugary foods, and pay attention to the usual morning and evening with a toothbrush brush, choose fluoride toothpaste, but also learn to use dental floss, to keep the mouth clean, rinse your mouth after meals is also very important.