Abstract
In children, alveolar bone preservation and regeneration after autotransplantation of an immature premolar to replace an avulsed or severely traumatized maxillary central incisor is an important outcome of this procedure. This phenomenon has been described in a few animal and clinical studies and is related to the regeneration potential of a vital periodontal ligament of the transplanted tooth. Important factors that help to achieve the successful healing and preservation of an intact periodontal ligament on the donor tooth are discussed in this paper. They include proper donor selection, sufficient space conditions at the recipient site, and a gentle surgical technique. Immature premolars are regarded as the optimal donors to replace traumatized maxillary central incisors. Complete regeneration of the alveolar process after autotransplantation of a developing mandibular premolar is presented in a young girl with a traumatically lost maxillary central incisor.
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