【摘要】 目的 :比较不同喂养方式幼儿间变形链球菌族细菌 (MS)定殖差异 ,为龋病预防提供依据。方法 :采用细菌分离、培养、生化试验和免疫学血清凝集试验对幼儿乳前牙牙菌斑内细菌进行分离鉴定 ,分析病原菌的定殖情况以及与婴儿期喂养方式的关系。结果 :幼儿猛性龋优势菌为变形链球菌。不同喂养方式猛性龋幼儿之间MS定殖水平无差别。母乳喂养无龋儿童牙菌斑内MS水平明显高于奶瓶喂养者。结论 :幼儿猛性龋主要致病菌为变形链球菌 ,6个月以上的母乳喂养有利于MS定殖。更多还原

【Abstract】 AIM:To compare the difference of colonization of Mutans Streptococci(MS)in young children with different feeding mode.METHODS:Bacteria in the dental plaque of the anterior deciduous teeth of children were isolated and identified by colony morphology, biochemical test and immunoassay of serum agglutination.RESULTS:The predominant bacteria of rampant caries of children were Streptococci Mutans. Between breast-fed and bottle-fed young children with rampant caries, the colonization level of MS showed no difference. In caries-free children,the breast-fed children had higher levels of MS than the bottle-fed ones.CONCLUSION:The predominant bacteria of rampant caries of children were Streptococci Mutans. More than six months′ breast-fed will be advantaged to the colonization of MS. [更多还原