A study on resin core construction for structurally compromised roots.

• Project/Area Number: 20791418
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Prosthetic dentistry
• Research Institution: Tokyo Medical and Dental University
• Principal Investigator: KOMADA Wataru Tokyo Medical and Dental University, 大学院・医歯学総合研究科, 助教 (10447493)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2010: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000); Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2008: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 支台築造 / 歯根破折 / グラスファイバーポスト / 破壊強度

Research Abstract

(1)The fracture strength of structurally compromised tooth with flared root canal was high value when the cast metal post and core was cemented after the reinforcement of the tooth structure used resin composite together with the clear acrylic post.
(2)Composite resin cores with the experimental posts without glass fiber have similar fracture strength to that with prefabricated glass fiber posts and the fracture strength of endodontically treated teeth restored with composite resin cores is not influenced by the flexural modulus of these posts.

Research Products

• [Journal Article] Effect of reinforcement with resin composite on fracture strength of structurally compromised roots. (2009)
  • Author(s): Y.Fukui, W.Komada, K.Yoshida, S.Otake, D.Okada, H.Miura.
  • Journal Title: Dent Mater J 28 Pages: 602-609
  • NAID: 10025916738
  • Peer Reviewed
• [Journal Article] Effect of reinforcement with resin composite on fracture strength of structurally compromised roots (2009)
  • Author(s): Fukui Y, Komada W, Yoshida K, Otake S, Okada D, Miura H
  • Journal Title: Dental Materials Journal 28(5) Pages: 602-609
  • NAID: 10025916738
  • Peer Reviewed
• [Presentation] Influence of flexural modulus of posts on composite resin cores. (2010)
  • Author(s): Kumagae N, Komada W, Okada D, Yoshida K, Takahashi H, Miura H.
  • Organizer: 第58回 国際歯科研究学会日本部会
  • Place of Presentation: 福岡
  • Year and Date: 2010-11-20
• [Presentation] 水中浸漬がグラスファイバーポスト併用レジン支台築造の強度に及ぼす影響 (2010)
  • Author(s): 駒田亘, 熊谷直輔, 稲垣祐久, 福井雄二, 植田洋二, 大竹志保, 岡田大蔵, 吉田惠一, 三浦宏之
  • Organizer: 社団法人日本補綴歯科学会東京支部総会・第14回学術大会
  • Place of Presentation: 東京
  • Year and Date: 2010-10-16
• [Presentation] 水中浸漬がグラスファイバーポスト併用レジン支台築造の強度に及ぼす影響 (2010)
  • Author(s): 駒田亘, 熊谷直輔, 稲垣祐久, 福井雄二, 植田洋二, 大竹志保, 岡田大蔵, 吉田恵一, 三浦宏之
  • Organizer: 日本補綴歯科学会東京支部総会・第14回学術大会
  • Place of Presentation: 東京
  • Year and Date: 2010-10-16
• [Presentation] Influence of water immersion on mechanical properties of fiber posts. (2010)
  • Author(s): W.Komada, N.Kumagae, Y.Fukui, S.Otake, D.Okada, K.Yoshida, H. Miura.
  • Organizer: Barcelona
  • Place of Presentation: Spain
  • Year and Date: 2010-07-17
• [Presentation] Influence of water immersion on mechanical properties of fiber posts. (2010)
  • Author(s): W.Komada, N.Kumagae, Y Fukui, S.Otake, D.Okada, K.Yoshida, H.Miura.
  • Organizer: 88th General Session of the IADR
  • Place of Presentation: バルセロナ
  • Year and Date: 2010-07-17
• [Presentation] Influence of flexural modulus of posts on composite resin cores. (2010)
  • Author(s): Kumagae N, Komada W, Okada D, Yoshida K, Takahashi H, Miura H.
  • Organizer: The 58th Annual Meeting of Japanese Association for Dental Research
  • Place of Presentation: Kitakyusyu, Japan
• [Presentation] 水中浸漬がグラスファイバーポストの強度に及ぼす影響 (2009)
  • Author(s): 駒田亘, 熊谷直輔, 福井雄二, 大竹志保, 大森哲, 三浦宏之
  • Organizer: 第52回日本歯科理工学会学術講演会
  • Place of Presentation: 鹿児島
• [Presentation] コア部分のグラスファイバーポストの長さが築造体の破壊強度に及ぼす影響 (2009)
  • Author(s): 福井雄二, 大森哲, 駒田亘, 三浦宏之
  • Organizer: 第52回日本歯科理工学会学術講演会
  • Place of Presentation: 鹿児島
• [Presentation] Bond strengths of resin composite to caries-affected root canal dentin (2008)
  • Author(s): Otake S, Yoshida K, Fukui Y, Komada W, Miura H
  • Organizer: Japanese Association for dental research 56th Annual Meeting
  • Place of Presentation: 名古屋
  • Year and Date: 2008-11-30
• [Presentation] Structurally compromised roots restored with four post and core systems. (2008)
  • Author(s): Y Fukui, W Komada, K Yoshida, S Otake, H Miura.
  • Organizer: Japanese Association for dental research 56th Annual Meeting
  • Place of Presentation: Nagoya, Japan
  • Year and Date: 2008-11-29
• [Presentation] Structurally compromised roots restored with four post and core systems (2008)
  • Author(s): Fukui Y, Komada W, Yoshida K, Otake S, Miura H
  • Organizer: Japanese Association for dental research 56th Annual Meeting
  • Place of Presentation: 名古屋
  • Year and Date: 2008-11-29
• [Presentation] Mechanical properties of a new core build-up composite resin material (2008)
  • Author(s): Komada W, Fukui Y, Miura H, Otake S, Yusa K
  • Organizer: 86 th General Session of the IADR
  • Place of Presentation: カナダ・トロント
  • Year and Date: 2008-07-02
• [Remarks] ホームページ等