Influence of Lanthanum on Oral Microbes

DOI Web Site PubMed
  • KOBAYASHI Yasuko
    Department of Microbiology, School of Dentistry, Aichi-Gakuin University
  • OZEKI Masami
    Department of Microbiology, School of Dentistry, Aichi-Gakuin University
  • TAKEI Mitsuru
    Department of Microbiology, School of Dentistry, Aichi-Gakuin University
  • SHIMANO Ryoyu
    Dapartment of Chemistry, Aichi-Gakuin University

Bibliographic Information

Other Title
  • ランタンの口腔微生物に及ぼす影響
  • ランタン ノ コウコウ ビセイブツ ニ オヨボス エイキョウ

Search this article

Abstract

Lanthanum one of the rare earth elements which belongs to the law of periodicity family 3, subfamily A, inhibited caries formation in hamsters infected with S. mutans.<BR>The change of total number of microbes, streptococci, lactobacilli, and S. mutans, was investigated within the oral cavity of hamsters given the water with Lanthanum nitrate.<BR>With a cariogenic diet and a concentration of 30 μg/ml Lanthanum nitrate solution, the appearance time of S. mutans was delayed and its number tended to decrease.<BR>In the presence of the crude glucosyltransferases (GTase) of S. mutans B 13 and sucrose, the adherence of heat-killed cells of S. mutans, lactobacilli, actinomyces, and yeast-like organisms was compared when treated with Lanthanum nitrate solution and when not treated by it.<BR>It was observed that the ratio of adherence of each strains decreased when it was treated with 20-40 μg/ml.

Journal

Details 詳細情報について

Report a problem

Back to top