イヌの実験的露出歯根に施した自家遊離歯肉移植の効果

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The present study was to examine the effect of pulp vitality on the periodontal reattachment following the free autogenous gingival graft. Maxillary bilateral premolars in each of 4 dogs were used. Denuded root surfaces were prepared after the labial alveolar osteomies on the experimental region. Four weeks later, the pulp in the right teeth was extirpated and the root canals were filled with gutta percha points and root canal sealer or the root canals were left open (infected teeth). The left teeth were kept in the vital pulp as a control. The graft was placed over the denuded roots after 4 weeks. The animals were sacrificed 4 and 12 weeks postoperatively and a serial section of the premolars with surrounding tissues was prepared for a light microscopic examination. The clinical and histopathological findings showed that the gingival recession was more found in the infected teeth than the vital teeth and the former produced less periodontal reattachment as compared with the latter, and the interface between the donor and the recipient bed was characterized by the increased number and size of blood vessels.
特定非営利活動法人日本歯周病学会の論文
1981-03-28

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