移植歯歯根表面の肉眼的性状と臨床的経過に関する研究

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The relationship between the macroscopic condition of the root surface and clinical prognosis was studied in 11 human autotransplanted teeth. The macroscopic condition of the root surface was classified into areas with A) cementum exposure, B) attachment of Sharpy's fibers, and C) cementum injury. Histological examination of 10 healthy teeth showed that the results of macroscopic evaluation correlated well with the histologic findings of the root surface. The results of autotransplantation were evaluated clinically and radiographically in relation to the macroscopic conditions of the root surface. With the exception of case 3, in which an avulsed tooth was used for transplantation, the root surfaces of transplanted teeth showed areas with cementum exposure and attachment of Sharpy's fibers in varying proportions. Radiographically, formation of a normal periodontal space and lamina dura was confirmed 6 months postoperatively in most cases. Local replacement resorption was observed in case 3, but the patient did not complain of associated subjective symptoms. Clinically, there were no abnormalities in pocket depth, percussion sound, and mobility in any other teeth. No noteworthy difference was noted either clinically or radiographically in the postoperative course between areas with cementum exposure and those with attachment of Sharpy's fibers. The results suggest that the presence of cementum is important for regeneration of the periodontium.
社団法人日本口腔外科学会の論文

移植歯歯根表面の肉眼的性状と臨床的経過に関する研究

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