Root canal treatment for children needs to depend on the degree of the patient’s condition to decide, if there is no obvious pain, there is no need to do root canal treatment, if the patient’s severe pain, and the pulp itself has been necrotic, you need to carry out root canal treatment to achieve the purpose of treatment. 1. Unnecessary: if the patient caries in the early stage does not cause obvious pain, pay attention to oral cleaning can be, no need to do root canal treatment, but has formed caries need to remove the decay after filling treatment, such as the use of glass ion filling. 2. Necessary: If the development of caries in children is deep and causes severe pain, root canal treatment is necessary. Thoroughly remove the infected tissue in the pulp cavity, eliminate the infected pulp, reduce the oral bacteria re-infection of the root tip; and children can avoid bacterial damage to the alveolar bone around the root tip, the formation of apical fistula and abscess, which will cause harm to the body after root canal treatment. It is also recommended that patients should pay attention to oral hygiene, brush and rinse their teeth in time before and after meals. Try not to chew food with the affected side to prevent tooth loosening. Diet should avoid spicy, cold and other stimulating food. If the tooth pain is recommended to go to the hospital in time.