Digital-guided Autotransplantation of Teeth with Autogenous Bone Augmentation: A Case Report

Long-term dental defects are often accompanied by severe alveolar bone resorption, which compromises the maintenance of alveolar bone height and thickness, thereby increasing the complexity of restoration. This case report presents a 24-year-old female patient with a 6-month dental defect and alveolar bone resorption. The treatment consisted of autotransplanting the left mandibular third molar to the defect site, with the use of a three-dimensional printed donor tooth replica and the surgical guide for precise alveolar socket preparation. Simultaneously, autogenous bone harvested intraoperatively was transplanted to the buccal bone defect area. Root canal treatment was performed 2 weeks postoperatively. A 21-month follow-up demonstrated a stable transplanted tooth, satisfactory buccal bone regeneration, and notable esthetic improvement. This case highlights the potential benefits of integrating digital technology with autogenous bone grafting in autotransplantation of teeth for complex dentition defects.