５年に亘るキャスタブルセラミックス（ＯＣＣ）の破折に関する臨床的評価

• 右近 晋一

  福岡歯科大学補綴学第二講座

• 久間 一宏

  福岡歯科大学補綴学第二講座

• 緒方 稔泰

  福岡歯科大学補綴学第二講座

• 深浦 由圭

  福岡歯科大学補綴学第二講座

• 勝俣 辰也

  福岡歯科大学補綴学第二講座

• 石川 広秀

  福岡歯科大学補綴学第二講座

• 安本 勝観

  福岡歯科大学補綴学第二講座

• 松浦 智二

  福岡歯科大学補綴学第二講座

書誌事項

タイトル別名

• A Clinical Evaluation of the Strength of Castable Ceramics (OCC) Crown during a 5-year Follow-up.

抄録

The castable ceramic restorations have advantages on clinical applications. However the clinical strength of the restorations for long-term have yet to be fully investigated.<BR>The purpose of this study was 1) to evaluate the clinical strength of the castable ceramic crown (OCC), 2) to estimate the cause of failure, and then to improve the clinical technique.<BR>In this study, 65 single crowns (including 4 onlays to molar) were placed in 25 patients and observed for a 5-year follow-up.<BR>The results were as follows:<BR>1. Nineteen of 65 restorations fractured, chiped and hair-cracked.<BR>2. The incidence of failure for molars, premolars, and anteriors was 39%(7/18), 25%(5/20), and 26%(7/27), respectively.<BR>3. The mean period of these failure cases was 27.9 (±S. D. 9.7) months.<BR>4. Kaplan-Meier's estimation revealed that the estimated mean time of success was 47 months andsuccessful probability of 3 years later was about 65%, and 5 years later was 45%.<BR>The successful life time of OCC might be shorter than other restorations.

収録刊行物

• 日本補綴歯科学会雑誌

  日本補綴歯科学会雑誌 41 (3), 495-501, 1997

  社団法人 日本補綴歯科学会

キーワード

• castable ceramics
• OCC
• clinical strength
• 5-year follow-up
• fracture

詳細情報

• CRID: 1390001204409683840
• NII論文ID: 10008166686
• NII書誌ID: AN00197911
• DOI: 10.2186/jjps.41.495
• ISSN: 1883177X
• ISSN: 03895386
• Web Site: http://www.jstage.jst.go.jp/article/jjps1957/41/3/41_3_495/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/1997230965
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可