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学科主题: 口腔医学
题名:
Non-mutans streptococci in patients receiving radiotherapy in the head and neck area
作者: Tong, HC; Gao, XJ; Dong, XZ
关键词: high-caries-risk individual ; non-mutans streptococci ; radiotherapy
刊名: CARIES RESEARCH
发表日期: 2003-07-01
DOI: 10.1159/000070686
卷: 37, 期:4, 页:261-266
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Dentistry, Oral Surgery & Medicine
研究领域[WOS]: Dentistry, Oral Surgery & Medicine
关键词[WOS]: DENTAL PLAQUE ; LOW-PH ; VIRIDANS STREPTOCOCCI ; CARIES ; RADIATION ; DYSFUNCTION ; MICROFLORA ; GORDONII ; SURFACES ; BACTERIA
英文摘要:

Objective: To study mutans and non-mutans streptococci in patients after radiotherapy of the head and neck. Methods: Oral rinse samples collected from nasopharyngeal carcinoma patients before and after radiotherapy were diluted and cultured on nonselective and selective media for enumeration of total cultivable plaque flora, mutans and non-mutans streptococci and lactobacilli. Non-mutans streptococci were identified biochemically and by 16S rDNA sequence homology analysis. Results: After irradiation, mutans streptococci were not isolated; the levels of Streptococcus mitis and lactobacilli increased significantly. The level of Streptococcus salivarius increased, but the significance was the borderline. The level of Streptococcus sanguis decreased significantly after irradiation. The abundance of other oral streptococci species showed no significant changes. Conclusions: S. mitis and S. salivarius are the predominant non-mutans streptococci in the high-caries-risk oral flora following radiotherapy. Copyright (C) 2003 S. Karger AG, Basel.

语种: 英语
WOS记录号: WOS:000183482800004
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/54966
Appears in Collections:北京大学口腔医学院_期刊论文

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作者单位: 1.Peking Univ, Sch Stomatol, Dept Cariol Endodontol & Operat Dent, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Inst Microbiol, State Key Lab Microbial Resources, Beijing, Peoples R China

Recommended Citation:
Tong, HC,Gao, XJ,Dong, XZ. Non-mutans streptococci in patients receiving radiotherapy in the head and neck area[J]. CARIES RESEARCH,2003,37(4):261-266.
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