Effect of PMMA filler particles addition on the physical properties of resin composite

• KONDO Yoshiko

  Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University

• TAKAGAKI Tomohiro

  Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University

• OKUDA Makoto

  Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University

• IKEDA Masaomi

  Faculty of Dentistry, School for Dental Technology, Tokyo Medical and Dental University

• KADOMA Yoshinori

  Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University

• YAMAUCHI Junichi

  Kuraray Medical Inc

• OKADA Koichi

  Kuraray Medical Inc

• SADR Alireza

  Global Center of Excellence Program, Tokyo Medical and Dental University

• NIKAIDO Toru

  Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University

• TAGAMI Junji

  Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University Global Center of Excellence Program, Tokyo Medical and Dental University

Abstract

The aim of this study was to evaluate the effect of additional polymethyl methacrylate (PMMA) fillers on the physical properties of experimental resin composites. PMMA particles (d=30 μm) were added to an experimental methacrylate-based resin composite in five concentrations of 0, 2.0, 4.8, 9.1, and 23.1 wt%. Properties such as contact angle, water sorption and compressive strength were measured and the fractured specimens were observed with a scanning electron microscope. The results showed that a small amount (2 wt%) of additional PMMA fillers inhibited the crack propagation and enhanced compressive strengths of the resin composites, without a significant change in water contact angle of surface or increased water sorption. However, in higher portions, the mechanical properties were not improved as a debonding at the interface between untreated fillers and the matrix, or failure within the organic filler could reduce the compressive yield strength of the composite.

Journal

• Dental Materials Journal

  Dental Materials Journal 29 (5), 596-601, 2010

  The Japanese Society for Dental Materials and Devices

Keywords

• PMMA
• Resin composite
• Filler

Details

• CRID: 1390282679693330176
• NII Article ID: 10026669972
• NII Book ID: AA10443149
• DOI: 10.4012/dmj.2009-141
• ISSN: 18811361
• ISSN: 02874547
• Web Site: https://www.jstage.jst.go.jp/article/dmj/29/5/29_2009-141/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2011175658
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed