Children’s teeth knocked out of the permanent teeth usually can not grow back. Children’s permanent teeth are the teeth that grow after the loss of milk teeth, and if permanent teeth are lost, they generally do not grow back. Depending on the damage to the teeth, treatments such as fillings and dental implants may be considered. Permanent teeth are the teeth that gradually grow after milk teeth fall out when a person is about six years old, and most of them will come out at about 14 years old. If the teeth that are knocked out are milk teeth that have not yet been replaced, they generally do not need treatment and will grow back on their own. However, if the knocked out teeth are permanent teeth, they will not grow back. Children should go to the hospital in time for treatment if their permanent teeth are knocked out. If a permanent tooth is knocked out, but only part of it is knocked out and the root is still there, a filling can be considered. If the tooth has been knocked out completely, dental implants will be considered. It is recommended to bring your child to the hospital in time for treatment according to the condition of the tooth.