Carbonate apatite formation during the setting reaction of apatite cement

Arief Cahyanto, Kanji Tsuru, Kunio Ishikawa

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

12 被引用数 (Scopus)

抄録

Replacement of apatite cement (AC) to bone is still controversial issue. To understand factor that could affect the replacement of AC to bone, AC consisting of an equimolar mixture of tetracalcium phosphate (TTCP; Ca 4(PO4)2O) and dicalcium phosphate anhydrous (DCPA; CaHPO4) was allowed to set at 37°C and 100% relative humidity under 5% CO2 or N2. Carbonate apatite (CO 3Ap) was formed when AC was allowed to set under 5% CO2. The amount of CO3 decreased gradually as the depth from the surface increased. The CO3Ap was the B-type CO3Ap in which CO 3 2- was replaced with PO4 3- and the CO3Ap found in bone. Larger amount of TTCP remain unreacted when the AC was allowed to set under N2 whereas smaller amount of TTCP remain unreacted when the AC was allowed to set under CO2. This may be caused by the larger Ca/P molar ratio of CO3Ap. Formation of CO 3Ap and/or small unreacted TTCP are thought to be key factors for the replacement of AC to bone.

本文言語英語
ホスト出版物のタイトルAdvances in Bioceramics and Porous Ceramics V - A Collection of Papers Presented at the 36th International Conference on Advanced Ceramics and Composites, ICACC 2012
ページ7-10
ページ数4
33
6
出版ステータス出版済み - 2013
イベントAdvances in Bioceramics and Porous Ceramics V - 36th International Conference on Advanced Ceramics and Composites, ICACC 2012 - Daytona Beach, FL, 米国
継続期間: 1 22 20121 27 2012

その他

その他Advances in Bioceramics and Porous Ceramics V - 36th International Conference on Advanced Ceramics and Composites, ICACC 2012
Country米国
CityDaytona Beach, FL
Period1/22/121/27/12

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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