条件の異なる第三大臼歯を用いた自家歯牙移植4症例について

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  • Four Cases of Autotransplantation Using Various Kinds of the Third Molars

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In this paper, four cases of autogenous tooth transplantation using various kinds of maxillary and/or mandibular third molars were described. The patients ranged from 33 to 58 years old; two were males and two females. Donor teeth were two impacted and two erupted teeth.<br/> Erupted donor teeth were jiggled, and root canal treatment was done before transplantation. Root canal treatment of impacted donor teeth was done after transplantation. Donor teeth were extracted so carefully as to avoid damage to the periodontal ligament. Donor teeth were transplanted to the prepared alveolus, and the gingival flap was sutured.<br/> The transplanted tooth was splinted for 2~3 weeks, and the provisional restoration period was 3~5 months. Then final prosthetic treatment of the transplanted teeth was done.<br/> For two years postoperatively, remodeling of the marginal bone adjusted to the root and normal periodontal membrane-like structure was found by radiographic analysis in both cases. However, two teeth showed abnormal percussion sound and non-physiological mobility. No sign of root resorption was recognized by radiographs. It was considered that there was a possibility of ankylosis of donor teeth.

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