Children who have lost their new teeth need to go to the hospital to take pictures to check whether there are permanent tooth germs, and if there are tooth germs, they can be observed first and then cut the gingiva to help eruption, and if there are no tooth germs, they need to be considered for dentures at a later stage. 1. With permanent tooth germs: children who have lost their new teeth and do not grow new teeth, if the radiography confirms that there are permanent tooth germs, it may be caused by the premature loss of milk teeth, which can be observed for about three months, if there is still no sign of eruption, it is necessary to consider the removal of part of the gums, to help the permanent teeth to erupt. 2. No permanent tooth germs: children’s replacement teeth lost teeth do not grow new teeth may also be congenital missing teeth, need to wait until adulthood for the missing teeth gap denture repair. Children’s tooth replacement lost teeth do not grow new teeth, it is recommended to go to the hospital in a timely manner to check the specific circumstances of timely treatment, so as not to cause malocclusion, affecting the chewing function.