ワイヤ放電加工表面をもつチタン製骨内インプラントの臨床研究 : 複数施設での3〜6年間の臨床調査 - Clinical Study on a Titanium Endoseous implant Treated by Electric Discharge Machining : A Retrospective 3-to-6-year Multicenter Study -

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We evaluated the clinical performance of commercial titanium implants (IAT Fit Ⅱ, ISHIFUKU Co.) treated by wire-type electric discharge machining during the period under function for 3 to 6 years.<br/> We implanted 417 implants with diameter 3.8 mm and lengths of 8,10,13 and 15 mm, in 131 patients,during the years from 1995 to 1998, at three facilities. Eleven implants failed within one year after implantation, because of early failure of osseointegration. Ten of the 11 failures were 8 mm-length implants. There was no failure of implants after that period during the observation. Therefore, the survival rate of the implant during the overall 6 years was 97.4%.<br/> Patients were restored with 145 super-structures,such as 121 bridge-type prostheses,12 single-tooth replacements, and 7 overdentures.<br/> Six of the 75,8 mm-length implants showed marginal bone resorption of over 3 mm during 3 years.However, other implants were observed to be clinically satisfactory in the regions with different bone quality. Therefore, the success rate of implants placed in this study was 95.7% during the period of observation.<br/> These results indicated the current implant system evaluated in this study achieved a high survival and success rate, even in the region with fragile bone, although 8 mm-length implants showed worse prognosis.<br/>

収録刊行物

  • 日本口腔インプラント学会誌 = Journal of Japanese Society of Oral Implantology

    日本口腔インプラント学会誌 = Journal of Japanese Society of Oral Implantology 15(2), 232-239, 2002-06-30

    Japanese Society of Oral Implantology

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各種コード

  • NII論文ID(NAID)
    10008957566
  • NII書誌ID(NCID)
    AN10072606
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09146695
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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