ヒト永久歯セメント質内Ｓｈａｒｐｅｙ線維の微細構造的研究　こう合と加齢に伴う変化について

DOI

書誌事項

タイトル別名
  • A Fine Structural Study on Sharpey's Fibers in the Human Cementum of Permanent Teeth with Reference to Occlusal and Age Changes.
  • 咬合と加齢に伴う変化について

抄録

Sharpey's fibers in the human cementum associated with occlusion and age were observed by transmission electron microscopy and processed for morphometric analysis in the mid-root cementum area.Eighty permanent teeth were used in the study.Both teeth that had opposing occlusion and those without opposing occlusion were used.The results were as follows.1.In association with occlusion, (1) Sharpey's fibers of teeth with opposing occlusion showed an oblique orientation to the cementum surface and the cemento-dentinal junction with regular arrangement. (2) Sharpey's fibers of impacted teeth that did not have opposing occlusion showed parallel orientation to the cementum surface and the cemento-dentinal junction with irregular arrangement.Significant statistical differences of Sharpey's fibers width and content depended on the occlusal function. (3) Sharpey's fibers found in the cementum of teeth that had no opposing occlusion showed a thin and irregular arrangement in the superficial cementum layer.In the deep cementum layer, they showed an oblique orientation to the cemento-dentinal junction, and a thick and regular arrangement.Significant statistical differences in Sharpey's fibers width and content were found between superficial and deep cementum layers in those teeth without opposing occlusion.2.With respect to age, no significant statistical differences were shown in the the width and content of Sharpey's fibers between those teeth in humans under 30 years of age and those over 30 years of age.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390282681412295040
  • NII論文ID
    130004114270
  • DOI
    10.11277/stomatology1952.42.1
  • ISSN
    21850461
    00290297
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

問題の指摘

ページトップへ