Supernumerary tooth autotransplantation to replace missing maxillary central incisor using three-dimensional replica: A 6-year follow-up.

Introduction: Tooth autotransplantation is a viable surgical treatment option for patients with missing permanent teeth. Premolars are generally used for autotransplantation but often require extensive modifications. This case report evaluates the use of supernumerary tooth as an alternative option for premolar autotransplantation. This report shows successful supernumerary tooth autotransplantation with 6-year follow-up.

Methods: A 13-year-old male with non-contributory medical history was referred for a missing maxillary left central incisor (#9) and presence of a supernumerary tooth. The clinical and radiographic examination revealed presence of supernumerary tooth with similar dimensions to a central incisor. The treatment plan included autotransplantation of the supernumerary tooth to replace the missing central incisor (short-term) and future implant replacement of the autotransplanted tooth when jaw growth ceases (long-term). The patient and parents consented to treatment. A 3-D tooth replica was constructed based on CBCT analyses. Site #9 was prepared using split ridge technique to create a socket to house the 3-D replica. Upon achieving proper socket form, the supernumerary tooth was extracted and autotransplanted in the prepared socket. The supernumerary tooth was splinted, and the bite opened posteriorly using composite to eliminate any occlusal interferences.

Results: The patient was followed up clinically and radiographically. The autotransplanted supernumerary tooth integrated well within the newly created socket and remained functional at the 6-year follow-up.

Conclusions: The current case presents successful management of supernumerary tooth autotransplantation with 6-year follow-up. The results show stable periodontium with satisfactory functional and aesthetic results.