Development of low expansion resin-modified glass ionomers for restorative filling

• Project/Area Number: 26462954
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Prosthodontics/ Dental materials science and
• Research Institution: Meikai University
• Principal Investigator: HIBINO Yasushi 明海大学, 歯学部, 准教授 (20238322)
• Research Collaborator: SHIGETA Hirotaka
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: レジン添加型グラスアイオノマーセメント / 親水性 / 多官能性モノマー / 機械的強さ / 吸水率 / せん断接着強さ / 親水性多官能性モノマー / フッ素溶出 / 機械的性質

Outline of Final Research Achievements

The experimental resin-modified glass ionomers for restorative filling including hydrophilic multi-functional monomer or 2-hydroxyethyl methacrylate (HEMA) in the cement liquid were examined. The mechanical strength and water absorptions and shear bond strengths to the bovine dentin with and without surface treatment of bovine dentin of the cements were determined. The mechanical strengths of the cement including hydrophilic multi-functional monomer in the cement liquid (Cement A) showed greater than those of the cement with HEMA in the cement liquid (Cement B). Cement A revealed significantly lower water absorption compared to Cement B. Cement A had significantly greater shear bond strength to bovine dentin with surface treatment than those of Cement B. The study suggested that the mechanical strength, water absorption and shear bond strength to bovine dentin of the resin-modified glass ionomers for restorative filling were affected by the resin component in the cement.

Research Products

• [Journal Article] 粉液比が高強度充填用グラスアイオノマーセメントの機械的性質に及ぼす影響 (2015)
  • Author(s): 粟田 智，日比野 靖，長沢悠子，重田浩貴，中嶌 裕
  • Journal Title: 明海歯科医学 Volume: 44 Pages: 168-181
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] レジン成分の違いが試作充填用レジン添加型グラスアイオノマーセメントの強さと吸水率に及ぼす影響 (2015)
  • Author(s): 松本賢一，日比野 靖，長沢悠子，重田浩貴，中嶌 裕
  • Journal Title: 明海歯科医学 Volume: 44 Pages: 182-195
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 試作レジン成分の添加が充填用グラスアイオノマーセメントの破壊靱性値に及ぼす影響 (2015)
  • Author(s): 重田浩貴，長沢悠子，日比野 靖，中嶌 裕
  • Journal Title: 明海歯科医学 Volume: 44 Pages: 62-73
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Transparency of highly viscous conventional glass ionomers after long-term immersion (2016)
  • Author(s): Shigeta T, Hibino Y, Nagasawa Y and Nakajima H
  • Organizer: 2016 Annual Meeting of Academy of Dental Materials
  • Place of Presentation: Chicago, Illinois, U.S.A.
  • Year and Date: 2016-10-12
  • Int'l Joint Research
• [Presentation] 試作充填用レジン添加型グラスアイオノマーセメントの牛歯象牙質に対するせん断接着強さ (2016)
  • Author(s): 重田浩貴，長沢悠子，和田賢一，日比野 靖，松本賢一，粟田 智，尾松 純，中嶌 裕
  • Organizer: 第67回日本歯科理工学会学術講演会
  • Place of Presentation: 九州大学医学部百年講堂，福岡，福岡県
  • Year and Date: 2016-04-16
• [Presentation] 保管条件が高強度充填用グラスアイオノマーセメントの透明度に及ぼす影響 (2016)
  • Author(s): 日比野 靖，長沢悠子，重田浩貴，粟田 智，松本賢一，尾松 純，和田賢一，中嶌 裕
  • Organizer: 第67回日本歯科理工学会学術講演会
  • Place of Presentation: 九州大学医学部百年講堂，福岡，福岡県
  • Year and Date: 2016-04-16
• [Presentation] Fluoride release from experimental glass-ionomers made with different resin monomers (2015)
  • Author(s): Shigeta H, Nagasawa Y, Hibino Y and Nakajima H
  • Organizer: 2015 Annual Meeting of Academy of Dental Materials
  • Place of Presentation: Maui, Hawaii, U.S.A.
  • Year and Date: 2015-10-07
  • Int'l Joint Research
• [Presentation] Flexural strength of experimental highly viscous conventional glass ionomers (2015)
  • Author(s): Hibino Y, Nagasawa Y, Shigeta H, Omatsu J and Nakajima H
  • Organizer: 2015 Annual Meeting of Academy of Dental Materials
  • Place of Presentation: Maui, Hawaii, U.S.A.
  • Year and Date: 2015-10-07
  • Int'l Joint Research
• [Presentation] S-PRGフィラー含有試作レジン添加型グラスアイオノマーセメントのフッ素溶出 (2015)
  • Author(s): 重田浩貴, 長沢悠子，和田賢一，日比野 靖, 中嶌 裕
  • Organizer: 第66回日本歯科理工学会学術講演会
  • Place of Presentation: 東京
  • Year and Date: 2015-10-03
• [Presentation] 試作充填用レジン添加型グラスアイオノマーセメントの稠度と破壊靱性値 (2015)
  • Author(s): 重田浩貴，松本賢一，粟田 智，尾松 純，和田賢一，長沢悠子，日比野 靖，中嶌 裕
  • Organizer: 第65回日本歯科理工学会学術講演会
  • Place of Presentation: 仙台市情報・産業プラザ，仙台市
  • Year and Date: 2015-04-11 – 2015-04-12
• [Presentation] 親水性レジン成分の添加が充填用従来型グラスアイオノマーセメントの破壊靱性値に及ぼす影響 (2014)
  • Author(s): 重田浩貴，松本賢一，粟田 智，尾松 純，和田賢一，長沢悠子，日比野 靖，中嶌 裕
  • Organizer: 第64回日本歯科理工学会学術講演会
  • Place of Presentation: アステールプラザ，広島市
  • Year and Date: 2014-10-04 – 2014-10-05