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目的：探讨引起婴幼儿猛性龋的危险因素。方法：龋病危险因素调查和菌斑pH检测。应用Lo-gistic回归分析的方法研究婴幼儿猛性龋与危险因素之间的数量关系。结果：喂养时间、奶瓶内容、甜食习惯和菌斑pH值4项是婴幼儿猛性龋的危险因素。婴幼儿猛性龋的发病情况与用Logistic回归分析计算结果的判断情况一致率为96．2％。结论：用此4项来预测婴幼儿猛性龋比单纯用细菌学参数更为准确。“,”AIM: To study the risk factors of baby bottle tooth decay(BBTD). METHODS: To investigate the risk factom of caries and their plaque pH. The numeral relationship between the risk fctors and BBTD was studied by the Logistic regression analysis. RESULTS: Feeding time, baby bottle composition, desert habit and plaque pH were the risk factors. The coincidence between the prevalence of BBTD and the results of Logistic regression analysis was 96.2 %. CONCLUSION: It suggested that the four risk factors are more accurate than mere bacterial parameter in BBTD prediction.