Distribution of Streptococcus mutans and Streptococcus sobrinus at sub-sites in human approximal dental plaque.
Distribution of Streptococcus mutans and Streptococcus sobrinus at sub-sites in human approximal dental plaque.
复制标题
变形链球菌和远缘链球菌在人牙菌斑亚位点的分布。
DOI：
10.1159/000261531
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发表时间：
1993
期刊：
影响因子：
4.2
通讯作者：
J. Bulman
中科院分区：
文献类型：
--
作者：
K Ahmady;P. Marsh;H. Newman;J. Bulman
在人邻面菌斑中的远离接触区（A）、靠近接触区（S）和低于接触区（B）三个亚部位测定变形链球菌和远缘链球菌的分布和患病率。小菌斑样本取自所有三个子网站上的临床健全的邻面的一个前磨牙从每个21名学童。S.变形链球菌的检出率和检出比例均显著高于沙门氏菌。来自亚位点A（p = 0.019）、S（p = 0.034）和B（p = 0.004）的远缘牛。S.与A位点相比，在B位点检测到的变异株比例最高（p = 0.025）; S的分离频率或患病率无显著差异。sobrinus从任何子网站。S.变异株和S.远缘牛从未从A亚位点一起分离，最常见的是从B亚位点一起回收（p < 0.01）。结论是S.变异株和S. sobrinus优先定植在接触区域顶端最容易发生龋齿的部位。
The distribution and prevalence of Streptococcus mutans and Streptococcus sobrinus were determined at three sub-sites in human approximal plaque: away from (A), to the side of (S) and below (B) the contact area. Small plaque samples were taken from all three sub-sites on clinically sound approximal surfaces of a single premolar from each of 21 schoolchildren. S. mutans was detected significantly more often and in higher proportions than S. sobrinus from sub-sites A (p = 0.019), S (p = 0.034) and B (p = 0.004). S. mutans was detected in highest proportions from the B site compared to the A site (p = 0.025); there were no significant differences in the isolation frequency or prevalence of S. sobrinus from any of the sub-sites. S. mutans and S. sobrinus were never isolated together from the A sub-sites and were recovered together most commonly from the B sub-sites (p < 0.01). It is concluded that S. mutans and S. sobrinus preferentially colonise the most caries-prone site apical to the contact area.