Behavior of Trace Elements in Novel Apatite-ionomer Cement

DOI オープンアクセス
  • CHIU Hsiu-hui
    Graduate School of Dentistry (Department of Pediatric Dentistry),
  • SHINONAGA Yukari
    Department of Pediatric Dentistry, Osaka Dental University, Osaka, Japan
  • NISHIMURA Takako
    Department of Pediatric Dentistry, Osaka Dental University, Osaka, Japan
  • HARADA Kyoko
    Department of Pediatric Dentistry, Osaka Dental University, Osaka, Japan
  • ARITA Kenji
    Department of Pediatric Dentistry, Osaka Dental University, Osaka, Japan

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<p>The present study investigated the role of matrix on the behavior of elements in HAp-added conventional glass ionomer cement (GIC), referred to as "apatite-ionomer cement (AIC)." The AIC samples were produced by replacing 8-16 wt% of GIC powder with porous spherical-shaped HAp. One-half of the samples had the matrix-rich layer removed. The AIC and GIC samples with and without a matrix-rich layer underwent multi-element analysis using a fluoride electrode and ICP-AES. The antibacterial activity of the samples against S. mutans was also evaluated using ATP-luminescence methods. The mineral ion release properties and antibacterial activity of AICs were superior to those of GIC. The concentrations of elements released from GIC and AIC samples with a matrix-rich layer were significantly greater than those from GIC and AIC samples without the matrix-rich layer. The luminescence intensities of S. mutans suspensions containing immersed AICs were significantly lower than those of suspensions containing GIC.</p>

収録刊行物

  • Nano Biomedicine

    Nano Biomedicine 8 (2), 101-111, 2016

    ナノ・バイオメディカル学会

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