乳酸桿菌数が齲蝕活動性試験(CAT21テスト)の判定結果に与える影響について  [in Japanese] The effect of the amount of Lactobacilli on the results of a caries activity test (CAT 21 Test)  [in Japanese]

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Author(s)

    • 宮城 淳 MIYAGI Atsushi
    • 岡山大学歯学部附属病院小児歯科 Okayama University Dental School Hospital, Pediatric Dentistry
    • 堀 雅彦 HORI Masahiko
    • 岡山大学歯学部附属病院小児歯科 Okayama University Dental School Hospital, Pediatric Dentistry
    • 土肥 範勝 DOI Masanori
    • 岡山大学大学院医歯学総合研究科行動小児歯科分野 Department of Pediatric Dentistry, Okayama University Dental School
    • 紀 瑩 JI Ying
    • 岡山大学大学院医歯学総合研究科行動小児歯科分野 Department of Pediatric Dentistry, Okayama University Dental School
    • 紀 螢 OMAR Rodis
    • 岡山大学大学院医歯学総合研究科行動小児歯科分野 Department of Pediatric Dentistry, Okayama University Dental School
    • 松村 誠士 MATSUMURA Seishi
    • 岡山大学大学院医歯学総合研究科行動小児歯科分野 Department of Pediatric Dentistry, Okayama University Dental School
    • 下野 勉 SHIMONO Tsutomu
    • 岡山大学大学院医歯学総合研究科行動小児歯科分野 Department of Pediatric Dentistry, Okayama University Dental School

Abstract

幼稚園児(228名)を対象として,口腔内健診とカリオスタット検査(CAT21テスト)を行った。またDentocult®-LB検査を用い乳酸桿菌数を調べた。そしてCAT 21テストと齲蝕歯数および乳酸桿菌数との関係についても調査した。<BR>1.対象児のdf者率は64.5%,一人平均d歯数は2.7歯,一人平均df歯数は4.7歯であった。<BR>2.CAT値とDentocult-LB値は,d歯数およびdf歯数との問に高度の相関関係が認められた(p<0.001)。<BR>3.CAT値が高い群ほど,d歯数は多かった。なかでも2.5以上では,d歯数が著しく多くなった(ANOVAP<0.001)。<BR>4.Dentocult-LB値が高い群ほど,d歯数は多かった(ANOVA p<0.01)。<BR>5.CAT値とDentocult-LB値は,高度の相関関係が認められた(p<0.001)。また,CAT値が0.5の小児ではDentocult-LB値は,すべて103以下であった。しかしCAT値が高い小児ほどDentocult-LB値も高く,CAT値が2.5以上の場合LB値は約10<SUP>4</SUP>群以上が約80%,10<SUP>5</SUP>群以上が約60%,10<SUP>6</SUP>群が約35%となった。(χ<SUP>2</SUP>検定p<0.001)<BR>以上のことよりCAT21テストの判定結果は,乳酸桿菌数の影響を受け,なかでも25以上の小児では,菌数が著しく多いことが示唆された。

This study was conducted to investigate the relationship of the Cariostat test (CAT 21 test) and the amount of Lactobacilli present in the saliva (Dentocult®-LBw) ith caries status in 228 preschool children.<BR>The effect of the amount of lactobacilli and how it affects the CAT 21 scores was also investigated.<BR>The following results were obtained;<BR>1. The caries prevalence rate and the mean dt scores of the subjects was 64.5% and 2.7, respectively.<BR>2. A highly significant correlation was seen between the CAT scores and the amount of Lactobacilli present, compared with the mean dt scores. (Spearman correlation p<0.001)<BR>3. The mean dt scores increased as the CAT scores increased. When the CAT score was 2.5 or higher, the mean dt scores also increased remarkably. (ANOVA p<0.01)<BR>4. The mean dt scores also increased as the Dentocult-LB scores increases. (ANOVA p<0.01)<BR>5. A highly significant correlation was seen between the CAT score and the amount of Lactobacilli present. It was observed that a low colony count of lactobacilli corresponded to a low CAT score (CAT 1.5 or lower) while a high colony count corresponded to a CAT score of 2.5 or higher.<BR>According to the results above, the study indicated that children who had a CAT score of 2.5 or higher, also showed a remarkably high Lactobacilli colony count.

Journal

  • The Japanese Journal of Pediatric Dentistry

    The Japanese Journal of Pediatric Dentistry 40(3), 493-499, 2002-06-25

    The Japanese Society of Pediatric Dentistry

References:  30

Cited by:  2

Codes

  • NII Article ID (NAID)
    10012156132
  • NII NACSIS-CAT ID (NCID)
    AN00116228
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    05831199
  • Data Source
    CJP  CJPref  J-STAGE 
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