破折した中空インプラントの走査電子顕微鏡と光学顕微鏡による観察 Scanning Electron and Light Microscopic Observation of a Fractured Hollow Implant

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抄録

The purpose of this study was to investigate radiologic, histologic, and ultrastructural findings of a retrieved hollow Bonefit-HC implant that survived for 2 years in the maxilla of a 54-year-old male. A periapical radiograph showed a moderate radiolucency at the cervix. The ultrastructural analysis of the fractured surface disclosed that metal fatigue fracture occurred. Examination of the histological sections disclosed that the remaining hollow portion was completely filled with healthy bone tissue and that the shape of extruding bone tissue was fitted to the ceiling of the other fractured implant. Consequently, the fracture had occurred before implant removal, and the reasons for this fracture were thought to be 1) overloading due to few abutments, 2) excess stress concentration of bending moment to this implant because of lateral guided occlusion and anterior guidance, 3) angulated installation, and 4) its specific open cage-like design.

収録刊行物

  • 日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society

    日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society 41(2), 195-200, 1997-04-01

    Japan Prosthodontic Society

参考文献:  11件中 1-11件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10008165659
  • NII書誌ID(NCID)
    AN00197911
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03895386
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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