Dynamic analysis of root fracture with high speed camera

• Project/Area Number: 22791885
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Prosthetic dentistry
• Research Institution: Osaka University
• Principal Investigator: USAMI Hirofumi 大阪大学, 歯学部附属病院, 医員 (30573456)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2010: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
• Keywords: 歯科補綴学一般 / ハイスピードカメラ / 歯根破折 / 動的挙動 / 支台築造 / ポストコア

Research Abstract

The conditions of the optimal number of the highest resolution were examined and set up so that the highest resolution might be obtained within the limits of the photography speed which can check the process of crack progress using a high speed camera. In order to analyze the fracture action by the difference in the abutment build up method, the fundamental physical properties of various materials used for abutment construction were measured. The optimal photography conditions of the physical properties of a abutment construction object and a high speed camera that are needed from the above result when performing clinical study from now on were able to be searched for.

Research Products

• [Journal Article] The relationship between milling a new silica-doped zirconia and its resistance to low-temperature degradation (LTD): a pilot study (2012)
  • Author(s): T.Nakamura, H.Usami, H.Ohnishi, H.Nishida, X.Tang, K.Wakabayashi, T.Sekino, H.Yatani
  • Journal Title: Dental Materials Journal Volume: 31 Issue: 1 Pages: 106-112
  • DOI: 10.4012/dmj.2011-048
  • NAID: 10030128418
  • ISSN: 0287-4547, 1881-1361
  • Peer Reviewed
• [Journal Article] The effect of adding silica to zirconia to counteract zirconia's tendency to degrade at low temperatures (2011)
  • Author(s): Nakamura T, Usaml H, Ohnishi H, Takeuchi M, Nishida H, Sekino T, Yatani H
  • Journal Title: Dental Materials Journal Volume: 30 Issue: 3 Pages: 330-335
  • DOI: 10.4012/dmj.2010-142
  • NAID: 130000751048
  • ISSN: 0287-4547, 1881-1361
  • Peer Reviewed
• [Presentation] Evaluation of Silica-Doped Y-TZP for Dental Restorations (2011)
  • Author(s): Usami H
  • Organizer: International Dental Materials Congress 2011
  • Place of Presentation: Seoul, Korea
  • Year and Date: 2011-05-28
• [Presentation] 歯科用材料に最適な多機能調和型ジルコニアセラミックスの創成と特性 (2010)
  • Author(s): 関野徹, 中村隆志, 宇佐美博文, 西田尚敬, 大西宏司, 田中俊一郎
  • Organizer: 第10回東北大学多元物質科学研究所研究発表会
  • Place of Presentation: 仙台市
  • Year and Date: 2010-12-01
• [Presentation] シリカ添加がジルコニアセラミックスの物性に与える影響 (2010)
  • Author(s): 宇佐美博文, 中村隆志, 西田尚敬, 大西宏司, 関野徹, 矢谷博文
  • Organizer: 第55回日本歯科理工学会学術講演会
  • Place of Presentation: 東京
  • Year and Date: 2010-04-17
• [Presentation] Making CaTiO3 nano-tubes inducing osteoblast activation by hydrothermal synthesis (2010)
  • Author(s): Nishida H, Sekino T, Nakamura T, Usami H, Yamamoto K et al.
  • Organizer: The 3^<rd> International Congress on Ceramics
  • Place of Presentation: Osaka, Japan
• [Presentation] Characteristics of silica-contained Y-TZP during lowtemperature aging (2010)
  • Author(s): Usami H, Nakamura T, Nishida H, Sekino T, Yatani H et al.
  • Organizer: The 3^<rd> International Congress on Ceramics
  • Place of Presentation: Osaka, Japan
• [Presentation] ジルコニア用陶材の焼成回数が水熱腐食に及ぼす影響 (2010)
  • Author(s): 湯学華, 中村隆志, 宇佐美博文, 矢谷博文
  • Organizer: 平成22年度日本補綴歯科学会関西支部学術大会
  • Place of Presentation: 吹田
• [Presentation] Characteristics of Silica Contained Y-TZP during Low-Temperature Aging (2010)
  • Author(s): Usami Hirofumi
  • Organizer: 3rd International Congress on Ceramics
  • Place of Presentation: Osaka, Japan