Fitting accuracy and fracture resistance of crowns using a hybrid zirconia frame made of both porous and dense zirconia

DOI Web Site PubMed 参考さんこう文献ぶんけん23件けん オープンアクセス
  • NAKAMURA Takashi
    Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
  • SUGANO Tsuyoshi
    Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
  • USAMI Hirofumi
    Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
  • WAKABAYASHI Kazumichi
    Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
  • OHNISHI Hiroshi
    Nikkato Corporation
  • SEKINO Tohru
    Institute of Scientific and Industrial Research, Osaka University
  • YATANI Hirofumi
    Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry

この論文ろんぶんをさがす

説明せつめい

The purpose of this study is to evaluate the fitting accuracy and fracture resistance of crowns using a hybrid zirconia frame made of both porous and dense zirconia. Commercial semi-sintered zirconia, sintered dense zirconia and sintered hybrid zirconia were used. Sintered zirconia was milled using the CADきゃど/CAM system, and semi-sintered zirconia was milled and sintered to fabricate molar crown frames. Completed frames were veneered with tooth-colored porcelain. The marginal and internal gaps between frames/crowns and abutments were measured. Each crown specimen was subjected to a fracture test. There were no significant differences in marginal and internal gap among all the frames and crowns. The crown with the hybrid zirconia frame had a 31–35% greater fracture load than that with the commercial or dense zirconia frame (p<0.01). This suggests that the all-ceramic crowns with a hybrid zirconia frame have a high fracture resistance.

収録しゅうろく刊行かんこう物ぶつ

  • Dental Materials Journal

    Dental Materials Journal 34 (2), 257-262, 2015

    日本にっぽん歯科しか理工りこう学会がっかい

参考さんこう文献ぶんけん (23)*注記ちゅうき

もっと見みる

関連かんれんプロジェクト

もっと見みる

キーワード

詳細しょうさい情報じょうほう 詳細しょうさい情報じょうほうについて

問題もんだいの指摘してき

ページトップへ