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Analysis of trace elements in deciduous teeth and saliva using PIXE and evaluation of environmental risk in infant

Research Project

Project/Area Number 24600002
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field 子ども学(子ども環境学)
Research InstitutionTohoku University

Principal Investigator

IGARI KAZUKO  東北大学, 大学病院, 講師 (90125493)

Co-Investigator(Kenkyū-buntansha) TAKAHASHI Atsushi  東北大学, 大学病院, 助教 (50333828)
MATSUYAMA Shigeo  東北大学, 大学院工学研究科, 准教授 (70219525)
Project Period (FY) 2012-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords子どもの健康 / 微量元素 / 乳歯 / 子どもの環境 / こどもの環境
Outline of Final Research Achievements

In this study, naturally shed deciduous teeth obtained from children with some developmental disorders were analyzed for the kind, concentration and distribution of trace elements in enamel using PIXE. Ca and P, essential elements in tooth materials, and Zn, Cu, Sr were constantly detected. The concentration of each element was compared between in pre- and post-natal enamel around the neonatal line. Almost of the teeth showed higher Zn concentration in postnatal enamel rather than in prenatal enamel. The change of the element concentration in pre- and post-natal enamel varied according to an elemental kind and sample. It was suggested that the health condition of the infant could be reflected in the distribution of each element in pre- and post-natal enamel.

Report

(5 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (4 results)

All 2015

All Presentation (4 results)

  • [Presentation] 乳歯エナメル質における微量元素の分布様相―新産線前後の比較―2015

    • Author(s)
      高橋 温・猪狩 和子・橋本 恵・伊藤 あゆみ・石田 直子・長沼 由泰・佐々木 啓一
    • Organizer
      第32回日本障害者歯科学会
    • Place of Presentation
      名古屋国際会議場(名古屋市)
    • Year and Date
      2015-11-06
    • Related Report
      2015 Annual Research Report
  • [Presentation] 乳歯エナメル質における新産線前後の亜鉛濃度の分析2015

    • Author(s)
      猪狩和子・高橋 温・長沼由泰・松山成男・石井慶造・佐多大地・関 大輝・鈴木脩平・畠山泰輔・今泉光大
    • Organizer
      第31回PIXEシンポジウム
    • Place of Presentation
      高崎量子応用研究所(高崎市)
    • Year and Date
      2015-10-28
    • Related Report
      2015 Annual Research Report
  • [Presentation] 乳歯エナメル質における亜鉛の分布様相-マイクロPIXE法による分析-2015

    • Author(s)
      猪狩和子、高橋 温、松山成男
    • Organizer
      第53回日本小児歯科学会
    • Place of Presentation
      広島国際会議場
    • Year and Date
      2015-05-21 – 2015-05-22
    • Related Report
      2014 Research-status Report
  • [Presentation] 乳歯エナメル質における亜鉛の分布様相-マイクロPIXE法による分析-2015

    • Author(s)
      猪狩和子・高橋 温・松山成男
    • Organizer
      第53回日本小児歯科学会
    • Place of Presentation
      広島国際会議場(広島市)
    • Year and Date
      2015-05-21
    • Related Report
      2015 Annual Research Report

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Published: 2013-05-31   Modified: 2019-07-29  

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