Outcome and success rate of dental autotransplantation: A long‐term evaluation of 144 teeth

Abstract

Aim To evaluate a sample consisting of 144 autotransplanted teeth performed in 128 patients, which were subjected to periodic follow-up from 6 months to 23 years. Materials and methods The sample consists of 33 molars, 91 premolars, 4 canines and 16 incisors. Clinical and radiographic examinations were performed every 6 months since the day of transplantation. In the last follow-up visit, successful autotransplantation should present the following: absence of active inflammatory root resorption and ankylosis; crown/root ratio <1 (root size higher than crown size); radiographic evidence of additional root growth (in case of partly formed root grafts); absence of tooth mobility, periodontal disease and persistent periapical lesions after endodontic treatment. The success rate was acquired by percentage of transplanted teeth that met the criteria in relation to the total number of transplanted teeth in the sample. Statistical tests were performed as indicators of success. Results The evaluation showed a 93% success rate for the completion of autotransplanted teeth. Eight teeth showed inflammatory root resorption and five teeth, ankylosis. The success rate of molars was 91% and canines was 100%. All variables presented statistical p value of <0.05, except for tooth colouration, root development, donor site and recipient site. Conclusion These findings support that tooth autotransplantation is a reliable treatment and preferred solution for early tooth loss in children and young patients. Furthermore, it demands the professionals the correct evaluation as well as to create the necessary conditions regarding the site receptor, tooth to be transplanted, quality of the surgical procedure, aesthetic complement and periodic control of each case.