MTAと組成配合したポルトランドセメントのSEM-EDS分析による成分検討

• 大久保 厚司

  日本大学松戸歯学部組織発生解剖学講座 日本大学松戸歯学部歯内療法学講座

• 三島 弘幸

  高知学園短期大学医療衛生学科歯科衛生専攻

• 松永 常典

  長崎大学大学院医歯薬学総合研究科齲蝕学分野

• 川久保 敦

  長崎大学大学院医歯薬学総合研究科齲蝕学分野

• 辻本 真規

  長崎大学大学院医歯薬学総合研究科齲蝕学分野

• 井上 正朗

  大阪大学大学院歯学研究科顎口腔病因病態制御学講座

• 川島 正

  日本大学松戸歯学部歯内療法学講座

• 辻本 恭久

  日本大学松戸歯学部歯内療法学講座

• 中田 浩史

  日本大学松戸歯学部顎口腔義歯リハビリテーション学講座

書誌事項

タイトル別名

• Examination of constituent by energy dispersive X-ray spectroscopy of mineral trioxide aggregate (gray and white MTA) and composition blended Portland cement

抄録

Abstract : In this study, we made gray Portland cement and white Portland cement samples with a composition blend of Bi 20% and gypsum 5% with a weight ratio of 75% of each gray and white Portland cement. Four samples of commercial gray PROROOT MTA^®, gray Portland cement, white PROROOT MTA^® and white Portland cement were observed morphologically with a scanning electron microscope (SEM) and the trace element components were analyzed by energy dispersive X-ray spectroscopy (EDS). We investigated the possibility of endodontic application from these constituent elements and oxidation compound ratio.  The four samples included CaO and SiO₂ which were mineralization constituents, and the total molar ratios of these oxidation compounds were gray PROROOT MTA^® : 83.77%, gray Portland cement : 79.64%, white PROROOT MTA^® : 80.58% and white Portland cement : 83.51%. Mineralization promoting materials included MgO, Al₂O₃ and SO₃, and Bi₂O₃ of the contrast media. Fe was not included in the white PROROOT MTA^® and white Portland cement, and the oxidation compound molar ratio of Fe₂O₃ was gray PROROOT MTA^® : 0.53% and gray Portland cement : 2.59%.  From these results, although there were some differences in the weight ratio and atomic weight ratio of trace elements among these four samples, it is suggested that they had similar main components except Fe. However, it is necessary to investigate the trace elements of compounds as a whole, because SEM-EDS analysis was only possible from the sample surface to a depth of several μm.

収録刊行物

• 日本歯内療法学会雑誌

  日本歯内療法学会雑誌 30 (3), 140-146, 2009

  一般社団法人 日本歯内療法学会

キーワード

• gray PROROOT MTA^®
• white PROROOT MTA^®
• gray or white blended Portland cement
• SEM
• SEM-EDS analysis

詳細情報

• CRID: 1390282680166148992
• NII論文ID: 130006233528
• NII論文ID: 10025695423
• NII書誌ID: AA11837117
• DOI: 10.20817/jeajournal.30.3_140
• ISSN: 24239429
• ISSN: 13478672
• Web Site: https://search.jamas.or.jp/link/ui/2010018572
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可