Clinical Study On Alveolar Bone Changes In Autogenous Tooth Transplantation

Objective:Autogenous tooth transplantation, or autotransplantation of teeth, is defined as the transplantation of embedded, impacted or erupted teeth from its initial site into extraction sites or surgically prepared sockets in the same person. Autotransplantation of teeth has been done for many years. If the procedure is done with a full understanding of the applicable biological principles and if the proper clinical techniques are used, it can be very successful. Autotransplantation of teeth ensures maintenance of alveolar bone volume by physiological stimulation of the periodontal ligament (PDL), by which it can also promote the proliferation and alteration of alveolar bone. Keeping the stability of the transplanted tooth and avoid too much occlusal load can ensure the healing of periodontal tissue in the initial stage. In the late stage proper masticatory stimulation can stimulate proliferation and alteration of alveolar bone. The proliferation and alteration of alveolar bone after autogenous tooth transplantation was accessed by periapical radiograph and panoramic radiograph. Methods:This retrospective study was done in30of28patients who received the third molar tooth transplantation and attended the first week, as well as the1-,3-,6-and12-month follow-up. Bone healing of transplanted tooth was subsequently evaluated by direct visual interpretation of the postoperative periapical radiographs and BMD was measured through relevant software of panoramic radiographs, and the healing situation was recorded.Results:Thirty cases of transplantation were studied. Most of them had normal wound healing. The direct radiographic interpretation and mensurational software found significant alveolar bone formation in the first and the third-month follow-ups (P<0.05).Conclusions:Postoperative periapical radiographs and panoramic radiographs revealed the distinctive bone proliferation and alteration from first to the third month. The clinical and radiographic assessment found that the third molar transplants could bear a normal Masticatory load within3months.