Microstructure Observation and Elemental Analysis of S-PRG Filler Added Resin Composite

DOI 3 Citations 11 References
  • OKA Masanobu
    Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
  • HOTTA Masato
    Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
  • HOTTA Yasuaki
    Central Research Laboratories of Oral Science, Asahi University School of Dentistry
  • KOTAKE Hirotomo
    Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
  • SAKU Seitaro
    Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry
  • YAMAMOTO Kohji
    Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry

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  • S-PRGフィラー含有試作コンポジットレジンの微細構造と元素分析

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Abstract

The purpose of this study was to examine the microstructure and elemental analysis of surface reaction type pre-reacted glass-ionomer (S-PRG) filler. Composite resins filled with S-PRG filler particles, multifunctional (MF) glass filler and raw material multifunctional (RMF) glass filler were used. Each specimen was observed under a scanning electron microscope (SEM) and analyzed with an energy dispersive X-ray micro analyzer. In addition, the microstructure of each specimen was observed under a transmission electron microscope (TEM). In all specimens, the TEM images showed low electron density spherules inside the fillers. However, a low electron density layer was observed only in S-PRG fillers. These findings suggested that the filler surface had been altered by the reaction of S-PRG. The SEM images illustrated no difference among the specimens. According to elemental analysis, there was no difference among the fillers;elements such as Al, Si, Sr were found to be the main constituents of S-PRG filler and B, O, C, F, Na were also found in low concentrations. The evolution of S-PRG filler could be identified with the examination carried out in this study.

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