Children’s teeth have not yet fallen out of the new teeth, may be the emergence of milk teeth stagnation, may also be multiple teeth, milk teeth stagnation can be based on the situation to choose the appropriate to eat hard food, extraction of milk teeth, and multiple teeth should be removed in a timely manner. 1. Eat hard food: If the child does not cooperate with the extraction of retained milk teeth, the child can be allowed to eat some hard food to promote the root resorption of milk teeth. 2. Extraction of milk teeth: if the loose milk teeth are serious, you can choose to extract the milk teeth under surface anesthesia; if the loose milk teeth are not serious, you need to carry out infiltration anesthesia, and then extract the milk teeth. 3. Extraction of supernumerary teeth: If the teeth that grow out of the milk teeth are supernumerary teeth, the supernumerary teeth should be extracted in time, so as not to affect the normal eruption of permanent teeth. Children’s teeth did not fall out of the new teeth to grow out in a timely manner to the hospital, to clarify the specific reasons for active treatment, so as not to affect the normal eruption of permanent teeth.