Introduction: The aim of the present study is to evaluate the success rate and the factors affecting the prognosis of immediate self-transplantation of the mandibular third molar, at the site of the homolateral first or second molar after clinical follow-up and radiology over a period of three years. Materials and Methods: A total of 90 mandibular third molars were immediately transplanted to replace the homolateral first or second molar deemed unrestorable. For mature molars, root canal treatment is performed 1 to 2 weeks later. At the end of the clinical and radiographic checks of the transplanted third molars staggered according to a predefined schedule. Results: The average age of the patients was 22.80 years. The success rate is 87.8%. The success rate of auto-transplantation of immature and mature third molars is 91.2% and 81.8% respectively. Conclusion: Immediate auto-transplantation of mandibular third molars at the site of the homolateral first or second molar is a viable solution and an alternative to conventional prosthetic rehabilitation or implant treatment from a therapeutic and economical point of view.
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