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作者以细菌致牙釉质脱钙、脱磷的能力表示细菌的脱矿力，用生化分析法测定比较了变形链球菌、血液链球菌、乳杆菌、粘性放线菌和唾液链球菌的脱矿力。结果发现五种受试菌中，乳杆菌的脱矿力最大．其次是变形链球菌。细菌脱矿力与细菌接触碳水化合物的时间呈相关关系，即时间愈长；细菌的脱矿力愈大。根据以上实验结果，作者提出①脱矿力是细菌致龋的一个多数，要准确判断细菌的致龋力，需要综合分析细菌的各种生物特性；②减少碳水化合物的摄入，缩短碳水化合物在口腔、牙面上的停留时间，能减弱细菌的脱矿力，这是龋病防治的重要途径之一。
The authors described the ability of demineralization and dephosphorization of the enamel by bacteria to indicate the demineralization ability of bacteria. The demineralization force of Streptococcus mutans, Streptococcus pneumoniae, Lactobacillus, Viscous actinomyces and Streptococcus salivarius were compared by biochemical analysis . The results showed that the five tested bacteria, the largest demineralization Lactobacillus. Followed by Streptococcus mutans. The relationship between bacterial demineralization and bacterial exposure to carbohydrates was correlated, ie the longer the bacteria, the more demineralized the bacteria. According to the above experimental results, the authors propose that ① demineralization is a major cause of cariogenic bacteria, to accurately determine the bacterial cariogenic, the need for a comprehensive analysis of various biological characteristics of bacteria; ② reduce carbohydrate intake and shorten the carbohydrate in Oral, dental retention time, can reduce the demineralization of bacteria, which is one of the important ways to prevent dental caries.