Possibility for obtaining bioactive glass-ionomer cements

M. Kamitakahara, M. Kawashita, T. Kokubo, T. Nakamura

研究成果: Conference article査読

1 被引用数 (Scopus)


Glass-ionomer cements, which consist of CaO-CaF2-Al2O3-SiO2 glass powders and polyalkenoic acid, such as polyacrylic acid (PAA) aqueous solution, are widely used in dentistry, because of their fast setting ability without shrinkage and significant temperature increase, as well as high mechanical strength. However, they do not show bone-bonding ability, i.e. bioactivity. In the present study, and the possibility for obtaining bioactive glass-ionomer cements was fundamentally investigated. For this purpose, the effect of PAA on the apatite formation on bioactive ceramics in a simulated body fluid was investigated. It was revealed that even a small amount of PAA inhibits the apatite formation in the body environment. It is speculated that when the glass-ionomer cements are implanted into the body, PAA is released from the glass-ionomer cements and inhibits the apatite formation on their surfaces, as far as glass-ionomer cements are composed of PAA. Therefore, it is considered to be difficult to obtain bioactive glass-ionomer cements.

ジャーナルKey Engineering Materials
出版ステータスPublished - 2001 1月 1
イベント13th international Symposium on Ceramics in Medicine (BIOCERAMICS) - Bologna, Italy
継続期間: 2000 11月 222000 11月 26

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学


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