Children’s dental caries did not improve with consistent brushing. Dental caries should be treated and tooth brushing is beneficial for protecting dental health. Generally, children’s dental caries is because they do not pay attention to dietary management in their daily life, i.e., consuming foods with too much sugar, such as candy, dessert and other foods, or they do not pay attention to oral hygiene management and do not brush their teeth in the morning and evening, which will lead to dental caries problems. And if caries should be treated in time, insisting on brushing is not therapeutic, but can only achieve the purpose of oral hygiene and cleanliness. Therefore, for children’s dental caries should be timely dental repair, at the same time in daily life, should avoid eating sugary foods, morning and bedtime brushing on time, to a certain extent, is conducive to the protection of teeth. In addition, can not be ignored is that the diagnosis of children’s dental caries must be in the professional dentist under the guidance of scientific treatment, and actively follow the medical advice.