Adult Teeth Coming in Behind Baby Teeth
This is a very common occurrence with children, usually the result of a lower, primary (baby) tooth not falling out when the permanent tooth is coming in. In most cases if the child starts wiggling the baby tooth, it will usually fall out on its own within two months. If it doesn't, then contact your pediatric dentist, where they can easily remove the tooth. The permanent tooth should then slide into the proper place.