Ansai T, Yamashita Y, Shibata Y, Katoh Y, Sakao S, Takamatsu N, Miyazaki H, Takehara T
Department of Preventive Dentistry, Kyushu Dental College, Japan.
Int J Paediatr Dent. 1994 Mar;4(1):13-7. doi: 10.1111/j.1365-263x.1994.tb00095.x.
To establish a dental caries preventive programme in 4- and 5-year-old children, caries activity tests were used to assess salivary levels of mutans streptococci (using the Mucount test, Showa Yakuhin, Japan) and the acidogenic ability of dental plaque bacteria (using the Cariostat test, Sankin, Japan) in 260 kindergarten children. The relationships between the results of these two tests and the dental caries experience (dfs) of the children was evaluated. There was a significant positive correlation between the results of the Mucount and Cariostat tests in the total group of subjects. However, 91 subjects (35%) gave conflicting results with the two tests. These subjects were divided into two groups: one group (group B) included Mucount-negative and Cariostat-positive subjects, and the other group (group C) included Mucount-positive and Cariostat-negative subjects. Group B had a significantly higher mean dfs score than a group that was negative on both tests (group A). On the other hand, no significant difference in mean dfs score was observed between group C and group A. These findings suggested that mutans streptococci levels alone are an insufficient indicator for assessing dental caries activity of children at these ages and that the role of lactobacilli and other aciduric bacteria should be considered. It was concluded that assessment of caries activity using both Mucount and Cariostat tests is useful for a dental caries preventive programme for children of these ages.
为在4至5岁儿童中建立龋齿预防计划，采用龋齿活性测试评估了260名幼儿园儿童唾液中变形链球菌的水平（使用日本昭和 Yakuhin 的 Mucount 测试）和牙菌斑细菌的产酸能力（使用日本 Sankin 的 Cariostat 测试）。评估了这两项测试结果与儿童龋齿经历（dfs）之间的关系。在全部受试对象中，Mucount 测试和 Cariostat 测试的结果之间存在显著正相关。然而，91名受试者（35%）的两项测试结果相互矛盾。这些受试者被分为两组：一组（B组）包括 Mucount 测试结果为阴性而 Cariostat 测试结果为阳性的受试者，另一组（C组）包括 Mucount 测试结果为阳性而 Cariostat 测试结果为阴性的受试者。B组的平均 dfs 得分显著高于两项测试均为阴性的组（A组）。另一方面，C组和A组之间的平均 dfs 得分未观察到显著差异。这些发现表明，仅变形链球菌水平不足以作为评估这些年龄段儿童龋齿活性的指标，应考虑乳杆菌和其他耐酸细菌的作用。得出的结论是，使用 Mucount 和 Cariostat 测试评估龋齿活性对这些年龄段儿童的龋齿预防计划是有用的。
