The factors to improve the strength of zirconia all-ceramic veneering porcelain.

2013 Fiscal Year Final Research Report

• Project/Area Number: 24792058
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Prosthetic dentistry
• Research Institution: Tohoku University
• Principal Investigator: MIURA Shoko 東北大学, 大学病院, 医員 (60431590)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Keywords: ジルコニアセラミックス / 陶材 / 焼成条件 / 破壊靭性 / チッピング

Research Abstract

We investigated how various frame materials, porcelain firing temperature and heating rate influenced the fracture toughness of the veneer porcelain used for zirconia all-ceramic restorations.
The fracture toughness was evaluated according to the ISO 15732 standard. The data were analyzed using 2-way ANOVA and the Tukey-Kramer HSD test.The results suggest that the effects of the ZAC frame thickness and firing temperature on the fracture toughness of the veneer porcelain were not significantly different; however, the heating rate significantly influenced the fracture toughness.

Research Products

• [Journal Article] Fit of zirconia all-ceramic crowns with different cervical margin designs, before and after porcelain firing and glazing (2014)
  • Author(s): Shoko MIURA, Ryoichi INAGAKI, Shin KASAHARA, Masanobu YODA
  • Journal Title: Dental Material Journal Volume: 33(in press)
• [Journal Article] ジルコニアオールセラミック修復用ベニアポーセレンの破壊靱性に関する研究-フレーム材とポーセレンの焼成条件の影響- (2014)
  • Author(s): 工藤桃子, 三浦賞子, 菊地聖史, 稲垣亮一, 笠原紳, 佐々木啓一, 依田正信
  • Journal Title: 日本補綴歯科学会誌 Volume: 6(3)(印刷中)
• [Presentation] A Retrospective Study All-ceramic Single Crowns : 5-year clinical results (2014)
  • Author(s): S. Miura, S. Kasahara, M. Kudo, Y. Okuyama, A. Izumida, M. Yoda, K. Sasaki
  • Organizer: The 5th International Symposium for Interface Oral Health Science
  • Place of Presentation: 仙台・東北大学
  • Year and Date: 2014-01-20
• [Presentation] 模型材の色調がCAD/CAM 計測精度に与える影響 (2013)
  • Author(s): 笠原紳, 加藤裕光, 奥山弥生, 三浦賞子, 佐々木啓一
  • Organizer: 日本補綴歯科学会東北・北海道支部学会
  • Place of Presentation: 札幌
  • Year and Date: 2013-10-12
• [Presentation] Stress Analysis of Cantilevered All-Ceramic FPDs Using the 3-D FEM (2013)
  • Author(s): S. Miura, M. Kudo, R. Inagaki, S. Kasahara, K. Sasaki, M. Yoda
  • Organizer: 2nd Meeting of the International Association for Dental Research Asia Pacific Region
  • Place of Presentation: Bangkok, Thailand
  • Year and Date: 2013-08-21
• [Presentation] ジルコニアオールセラミッククラウンの臨床報告 (2013)
  • Author(s): 工藤桃子, 三浦賞子, 笠原紳, 奥山弥生, 泉田明男, 稲垣亮一, 佐々木啓一, 依田正信
  • Organizer: 第122回日本補綴歯科学会学術大会
  • Place of Presentation: 福岡
  • Year and Date: 2013-05-18
• [Presentation] Fracture Toughness of Veneer Porcelain for Zirconia All-ceramic Crown (2013)
  • Author(s): M.Kudo, S. Miura, M. Kikuchi, S. Kasahara, R. Inagaki, K. Sasaki, M.Yoda
  • Organizer: 91th IADR General Session
  • Place of Presentation: Seattle, USA
  • Year and Date: 2013-03-23
• [Presentation] ジルコニアオールセラミック用ベニアポーセレンの破壊靱性値に及ぼす焼成条件の影響 (2012)
  • Author(s): 工藤桃子, 三浦賞子, 菊地聖史, 稲垣亮一, 笠原紳, 佐々木啓一, 依田正信
  • Organizer: 第121回日本補綴歯科学会学術大会
  • Place of Presentation: 横浜
  • Year and Date: 2012-05-18