Transformation of apatite cement to B-Type carbonate apatite using different atmosphere

Arief Cahyanto, Kanji Tsuru, Kunio Ishikawa

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

13 被引用数 (Scopus)

抄録

Apatite cement (AC) is a breakthrough in biomaterials for the reconstruction of the bone defect. However, the replacement of AC to bone up to the present time is still controversial for researchers. Several researchers have reported that AC was replaced by bone while others claimed replacement was limited. The aim of this study is to investigate the transformation mechanism of AC to B-Type carbonate apatite (CO3Ap) using different atmosphere. An in vitro study mimicking the body environment was employed in order to examine the effect of setting atmosphere on the composition of set AC. An equimolar of tetracalcium phosphate (TTCP; Ca4 (PO4)2O) and dicalcium phosphate anhydrous (DCPA; CaHPO4) mixed with distilled water was enabled to harden at 37°C and 100% of relative humidity under presence of 5% CO2, 100% CO2, and 100% N2 atmospheres. XRD and FT-IR analyses revealed that in the presence of 100% CO2 and 5% CO2, Btype CO3Ap could be determined and only small amounts of TTCP remained unreacted. On the contrary, in the presence of 100% N2, the CO3-2 bands could not be detected and larger amount of TTCP remained unreacted compared to 5% CO2 and 100% CO2 atmospheres. SEM morphology showed that the microstructure of AC was entangled and locked to each other. In addition, the small needle like crystals appeared in the surface of 100% N2, similar to hydroxyapatite. We concluded that the CO3 -2 ions incorporated in AC during setting reaction may be one of the essential factors for CO3Ap formation.

本文言語英語
ホスト出版物のタイトルBioceramics 27
編集者Ika Dewi Ana, Kuwat Triyana
出版社Trans Tech Publications Ltd
ページ9-13
ページ数5
ISBN(印刷版)9783035710403
DOI
出版ステータス出版済み - 1 1 2016
イベント27th Symposium and Annual Meeting of the International Society for Ceramics in Medicine, 2015 - Bali, インドネシア
継続期間: 10 27 201510 29 2015

出版物シリーズ

名前Key Engineering Materials
696
ISSN(印刷版)1013-9826
ISSN(電子版)1662-9795

その他

その他27th Symposium and Annual Meeting of the International Society for Ceramics in Medicine, 2015
Countryインドネシア
CityBali
Period10/27/1510/29/15

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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