各種ファイルによる根管形成後の根管象牙質表面の観察  [in Japanese] Observation of root canal dentin surface after shaping by each file  [in Japanese]

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Abstract

<p><b>Abstract : </b>When the root canals are shaped with files, smear layers are always formed on the root canal dentin surfaces. The smear layers may reduce bacteria penetration, but residual bacteria in the smear layers may proliferate and play an important role producing periapical lesion. So, the absence or presence of smear layers on the root canal dentin is important clinically. The purpose of this study is to observate of root canal surfaces after shaping with nickel-titanium files or steinless steel files using scanning electron microscope. In the case of using nickel-titanium files, filed root canal dentin surfaces were observed as steps diagonally. And after removal smear layers with polyacrylic acid, dentinal tubules were observed clearly. On the other hand, the root canal surfaces showed like the fish scales when using steinless steel files. And after removal of smear layers with polyacrylic acid, dentinal plugs were observed.</p>

Journal

  • The Journal of Japan Endodontic Association

    The Journal of Japan Endodontic Association 21(1), 17-22, 2000-06-25

    Japan Endodontic Association

References:  31

Codes

  • NII Article ID (NAID)
    10008152618
  • NII NACSIS-CAT ID (NCID)
    AN10443184
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    13406248
  • Data Source
    CJP  J-STAGE 
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