There are certain times when your dentist may recommend removing a tooth. A baby tooth may need to be extracted due to contorted roots that prevent it from falling out. Your tooth may need to be removed due to decay. Orthodontic procedures, infection, or wisdom teeth could also require that a tooth is removed. If you remove a tooth that is in function, meaning you use it to chew with, it needs to be replaced by a dental bridge, implant or possibly a denture.