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目的:探讨儿童口腔变形链球菌和乳杆菌检测及其与龋病发生风险的关系。方法:分析2011年2月~2013年2月在吉林省人民医院口腔科进行口腔健康调查的儿童100例资料,依据WHO对于龋病的诊断标准,将100例儿童分为无龋组30例、中龋组40例、高龋组30例,观察各组儿童无龋和龋病的变形链球菌和乳杆菌的阳性率及与龋病的相关性。结果:有龋组变形链球菌和乳杆菌阳性率均高于无龋组,中龋、高龋组和变形链球菌及乳杆菌阳性率呈现明显的正相关(P<0.05)。结论:儿童口腔变形链球菌和乳杆菌阳性率和龋病发生呈现明显的正相关,有效地进行变形链球菌和乳杆菌检测可以预防龋病的发生。
Objective: To investigate the detection of Streptococcus mutans and Lactobacillus in children and its relationship with the risk of dental caries. Methods: From February 2011 to February 2013, 100 children with oral health survey conducted in Department of Stomatology of Jilin Provincial People’s Hospital were analyzed. According to WHO diagnostic criteria for caries, 100 children were divided into caries-free group (n = 30) 40 cases of carious group and 30 cases of high caries group. The positive rate of cariogenic bacteria and caries-free Streptococcus mutans and Lactobacillus in each group were observed and their correlations with dental caries were observed. Results: The positive rates of Streptococcus mutans and Lactobacillus in caries-bearing group were significantly higher than those in caries-free group. The positive rates of caries, caries-bearing group, Streptococcus mutans and Lactobacillus were positively correlated (P <0.05). Conclusion: There is a clear positive correlation between the prevalence of Streptococcus mutans and Lactobacillus in children, and the detection of Streptococcus mutans and Lactobacillus can prevent dental caries effectively.