Whether a child’s double row of teeth falls out naturally or is extracted needs to be judged according to the condition of the child’s teeth. If the permanent teeth have just erupted and there is loosening of the milk teeth, you can wait for them to fall out naturally. If the permanent teeth are not absorbed or the roots of the milk teeth are not completely absorbed, resulting in the delayed loss of milk teeth, you can choose to go to the hospital for extraction. Double rows of teeth may appear because the children’s diet is more delicate and the permanent teeth erupt on the lingual side of the milk teeth. During this time children can be allowed to eat foods such as apples, corn or nuts to help the milk teeth fall out naturally. If a child’s permanent teeth do not absorb the cusps of the milk teeth, and the milk teeth do not fall out for a long time or affect the child’s eating, you can choose to go to a regular dental clinic to have the retained milk teeth extracted. Usually, you can let children eat some more chewy food to exercise their teeth.