Cariostat与患龋现状关系之研究

THE STUDY ON THE RELATIONSHIP BETWEEN CARIOSTAT TEST AND THE PRESENCE OF DENTAL CARIES

目的明确龋病活跃性与患龋现状的关系。方法对３９１名３５岁幼儿进行患龋状况的调查和龋病活跃性检测。结果患龋率为６８８０％，ｄｆｔ为３４０±３７８，龋蚀指数ＣＳＩ为９５９±１２４０。上述各项在男女间均无性别差异（Ｐ＞００５），在各年龄组间均有高度统计学意义（Ｐ＜００００１）。龋病活跃性检测采用Ｃａｒｉｏｓｔａｔ法，结果显示０度占４０９％，１度占４７０６％，２度占４２４５％，３度占６４０％。Ｃａｒｉｏｓｔａｔ各度间的患龋率、ｄｆｔ和ＣＳＩ均有高度统计学意义（Ｐ＜０００００１），Ｃａｒｉｏｓｔａｔ与患龋率、ｄｆｔ和ＣＳＩ均有高度正相关关系（ｒ分别为０２８８，０４８７，０４３４，Ｐ＝００００１）。结论Ｃａｒｉｏｓｔａｔ法在反映患龋现状方面有一定的可靠性，在开展幼儿龋病的防治工作中有参考价值。

Purpose To investigate the presence of dental caries and evaluate the Cariostat test (Sankin, Tokyo, Japan).Methods 391 children aged 3 5 years in the kindergarten of Shanghai Medical University were examined for dental caries and detected for CAT (Caries Activity Test) using Cariostat test. In all subjects the buccal plaque samples were obtained, incubated and scored.Results The caries incidence was 68.80%, dft was 3.40±3.78 and CSI (Caries Severity Index) was 9.59±12.40. There was no sex difference (P>0 05) but highly significant in age groups. The Cariostat scores were as follows:Grade 0 was 4.09%,Grade Ⅰ 47.06%, Grade Ⅱ 42.45%, Grade Ⅲ 6.40%. It was found to be significantly correlated with caries incidence, dft and CSI (P=0 0001). The correlation coefficient r s were 0.28828, 0.48702, 0.43373, respectively. Conclusion As a CAT, Cariostat test shows the reliability in the presence of dental caries. It is also useful in the treatment and prevention of dental caries in children.