In the case of children with new teeth that have not fallen out, the following measures should be taken: First, just watch and wait. In some children, the baby teeth do not fall out but the new teeth have already started to erupt. In this case, the baby teeth will slowly fall out as the new teeth continue to grow, which is the way the majority of old and new teeth are replaced. If the child has no tooth pain, redness or swelling of the gums, no treatment is needed. Just watch and wait. Secondly, children should be given the opportunity to have their baby teeth extracted in a timely manner. If a child’s milk teeth are delayed, the space for the new teeth to grow is relatively small and may even cause the new teeth to grow particularly crooked, in which case the milk teeth should be extracted in time to facilitate the normal growth of the new teeth.