老年根面龋患者菌斑致病菌分析(英文)

• 作 者: 张廷发 张玉幸 张春梅 杨圣辉
• 机 构: 卫生部北京医院口腔科,卫生部北京医院口腔科,首都医科大学口腔医学研究所,首都医科大学口腔医学研究所 北京100730,北京100730,北京100050,北京100050
• 出 处: Chinese Medical Journal
• 发表日期: 2004年期
• 关键词: 老年根面龋 变形链球菌 菌斑 致龋 选择培养基 菌数

目的　探讨老年人根面龋的有关致龋菌。方法　收集 6 0～ 77岁有根面龋与无根面龋受试者菌斑标本 ,接种选择与非选择培养基。培养分离后 ,对总菌、产黑色素菌、链球菌、变形链球菌、放线菌、乳酸杆菌的菌数及检出率进行比较分析。结果　试验组总菌、链球菌、放线菌、乳酸杆菌数及其放线菌、乳酸杆菌的检出率均比对照组高。结论　放线菌和乳酸杆菌可能是老年人根面龋的主要相关致病菌。

Objective To investigate the cariogenic bacteria in the root caries of the elderly. Methods Plaque samples from subjects with root caries and root absent caries were collected from 60 to 77 years old, and were inoculated with selective and non-selective media. After culturing and separating, the number of bacteria and the detection rate of total bacteria, melanin producing bacteria, streptococcus, streptococcus mutans, actinomyces and lactobacillus were comparatively analyzed. Results The detection rate of total bacteria, streptococcus, actinomyces, lactobacillus and actinomycetes and lactobacillus in the test group were higher than those in the control group. Conclusion Actinomycetes and Lactobacillus may be the main pathogens of root caries in the elderly.