Methods: After formed the enamel pellicles with saliva and MG1 in vitro, it was evaluated that the role of saliva and MG1 against enamel demineralization.
方法：以全唾液、腮腺唾液、颌下舌下腺唾液和纯化的MG1对实验牙釉质表面进行体外孵育以形成唾液获得性膜，观察此膜抗釉质脱矿作用。
As the 10 groups, 2 groups were lower than the minimum detectable concentration, and we can not analysis the relationship between the caries status an MG1 content in the plaque.
由于10组有2组低于最低检测浓度，故无法对儿童菌斑MG 1含量与患龋状况之间的关系进行分析。
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