Dental trauma: 4. Avulsion and replantation of immature incisor teeth.

Facial trauma in children with immature incisor teeth often results in the complete avulsion of a maxillary permanent incisor because the root is only partially formed and the alveolar bone is still elastic. These teeth may be replanted: the long-term prognosis for replanted incisors has greatly improved because of improvements in our clinical knowledge following the pioneering and painstaking research work of Andreasen and his colleagues.