2009 Fiscal Year Final Research Report
Effect of Adding Spherical Silica Filler on Mechanical Properties and Anti-carious Activity of Glass-ionomer Cement
| Project/Area Number |
18592120
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
補綴理工系歯学
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| Research Institution | Okayama University |
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Principal Investigator |
IRIE Masao Okayama University, 大学院・医歯薬学総合研究科, 助教 (90105594)
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| Co-Investigator(Kenkyū-buntansha) |
TANAKA Jiro 岡山大学, 大学院・医歯薬学総合研究科, 助教 (40171764)
SUZUKI Kazuomi 岡山大学, 大学院・医歯薬学総合研究科, 教授 (30050058)
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| Co-Investigator(Renkei-kenkyūsha) |
SAITOU Takashi 北海道医療大学, 歯学部, 教授 (40265070)
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| Project Period (FY) |
2006 – 2009
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| Keywords | 生体材料 / ナノ材料 / 複合材料・物性 / 歯学 / 医療・福祉 |
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| Research Abstract |
This study was investigated the effects of spherical silica fillers on the mechanical properties and anti-carious activity of glass-ionomer cements (GIC). The original GIC and a preparation containing 20wt% spherical silica filler were also examined with regard to their fracture surface and fluoride release. The fillers increased the compressive strength remarkably : up to 17% in the case of silanized spherical fillers (SF). The SF increased the flexural strength by up to 17%. The addition of SF improved the workability and mechanical properties of GIC. When compared with the control (original GIC). The addition of SF significantly improved immediate marginal gap in the tooth cavities and setting shrinkage in Teflon mold up to 63% and 66% respectively. However, fluoride release was significantly reduced. And then, this research showed that addition of 5wt% SF increased the shear bond strength to human enamel and dentin.
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[Presentation] Sandblasting Alumina Affects Adhesion and Bending Properties of Resin Cement, # 0207, 2010.2010
Author(s)
G. Nishigawa, Y. Maruo, M Oka, Y Tamada, K. Yoshihara, S. Minagi, M. Irie, K. Suzuki
Organizer
39th Annual Meeting of the AADR 34th Annual Meeting of the CADR
Place of Presentation
Walter E. Washington Convention Center, Washington, DC, USA
Year and Date
20100303-20100306
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[Presentation] Setting Shrinkage Performance of Resin composites, # 0458, 2010.2010
Author(s)
M. Irie, M. Y Tamada, Y. Maruo, G. Nishigawa, M. Oka, S. Minagi, K. Suzuki, David C Watts
Organizer
39th Annual Meeting of the AADR 34th Annual Meeting of the CADR
Place of Presentation
Walter E. Washington Convention Center, Washington, DC, USA
Year and Date
20100303-20100306
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[Presentation] Ultrasonic Cleaning Affects Bond strength of Sandblasted Restorations to Cement, # 2355, 2009.2009
Author(s)
G. Nishigawa, Y. Maruo, M. Oka, K.Y. Tamada, S. Minagi, M. Irie, K. Suzuki
Organizer
87th General Session & Exhibition of the IADR, 38th Annual Meeting of the AADR 33rd Annual Meeting of the CADR
Place of Presentation
Miami Beach Convention Center, Miami, Fla, USA
Year and Date
20090401-20090404
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[Presentation] Vertical and Horizontal Setting Shrinkage in Composite Restorations, # 2443, 2009.2009
Author(s)
M. Irie, M. Y Tamada, Y. Maruo, G. Nishigawa, M. Oka, S. Minagi, K. Suzuki, David C Watts
Organizer
87th General Session & Exhibition of the IADR, 38th Annual Meeting of the AADR 33rd Annual Meeting of the CADR
Place of Presentation
Miami Beach Convention Center, Miami, Fla, USA
Year and Date
20090401-20090404
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[Presentation] Ultrasonic Cleaning Influences Silica-coated Zirconia Bond Strength, # 2304, 2008.2008
Author(s)
G. Nishigawa, Y. Maruo, M. Oka, K. Yoshihara, S. Minagi, M. Irie, K. Suzuki
Organizer
86th General Session & Exhibition of the IADR, 32nd Annual Meeting of the CADR
Place of Presentation
Metro Toronto Convention Centre, Toronto, ON, Canada
Year and Date
20080702-20080705
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[Presentation] Bond Strength of Self-adhesive Luting Cements to Zirconia after Thermocycling, # 2313, 2008.2008
Author(s)
M. Irie, M. Oka, Y. Maruo, G. Nishigawa, S. Minagi, K. Suzuki, David C Watts
Organizer
86th General Session & Exhibition of the IADR, 32nd Annual Meeting of the CADR
Place of Presentation
Metro Toronto Convention Centre, Toronto, ON, Canada
Year and Date
20080702-20080705
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[Presentation] Visual Inspection of Impression Pressure Distribution during Seating of Impression Tray, , # 1620, 2007.2007
Author(s)
G. Nishigawa, Y. Maruo, K. Oki, K. Hasegawa, S. Minagi, M. Irie, K. Suzuki
Organizer
IADR 85th General Session
Place of Presentation
Ernest N. Morial Convention Centre, New Orleans, Louisiana, USA
Year and Date
20070321-20070324
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