It is the nature of children to be active, and children are especially prone to accidents and trauma in their lives, with the 2 large incisors that have just grown out taking the brunt of the damage. (1) If the tooth is lost, please do not discard the tooth, you can rinse it with water, wrap it with a wet cloth and rush to the doctor, if conditions do not allow, you can also hold the lost tooth under the tongue to ensure the survival of the tooth replantation. (2) If the tooth is partially lost, don’t discard the lost part, you can follow the above method and bring it to the doctor to facilitate the diagnosis and treatment. (3) Parents should not worry too much, the current treatment methods can give you satisfactory results. The following is a 10-year-old child who was pushed by an external force and broke his incisor.