摘要
目的:比较不同龋敏感人群牙菌斑中变形链球菌群的检出情况。方法:以60例20～40岁的成人为研究对象,其中高龋患者[龋、失及补牙数(DMFT)≥6]及无龋者(DMFT=0)各30例。用无菌牙签刮取受试者牙面菌斑,经轻唾-杆菌肽琼脂培养基选择培养,进行革兰染色及细菌生化反应鉴定。结果:高龋组变形链球菌群阳性检出率(93.3%,28/30)高于无龋组(50.0%,15/30)(χ2=13.871,P<0.001)。结论:变形链球菌群细菌尤其是变形链球菌与龋病的发生有直接关系。
Aim：To study the relationship between streptococcus mutans in human dental plaque of different dental caries susceptibility persons and caries incidence.Methods：A total of 60 adults aged 20 ～ 40 years were divided into two groups：caries-free [（decayed,missing,filled teeth,DMFT） = 0]group and caries-active [DMFT≥6]group,30 in each group.Dental plaque samples were collected with sterilized toothpicks and cultured on streptococcus.The typical isolates of streptococcus mutans were identified by gram staining and classical microbiological methods.Results：Streptococcus mutans were predominant in human dental plaque.The positive rate of streptococcus mutans in the caries-active group（93.35%,28 /30） was higher than that（50.0%,15 /30） in the caries-free group（χ2 = 13.871,P〈0.001）.Conclusion：Streptococcus mutans might be related to the occurrence of dental plaque.
出处
《郑州大学学报（医学版）》
CAS
北大核心
2010年第4期626-628,共3页
Journal of Zhengzhou University(Medical Sciences)
关键词
变形链球菌
牙菌斑
龋病
streptococcus mutans
dental caries
dental plaque
