期刊
JOURNAL OF DENTISTRY
卷 35, 期 7, 页码 588-592出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jdent.2007.04.002
关键词
chlorhexidine varnish; mutans streptococci; pits and fissures; dental plaque
Objectives: This study aimed to test the following hypotheses: (1) a carry-over effect of EC40 does not occur in a split-mouth model, (2) two consecutive applications of EC40 varnish with an interval of 3 months per year has a better inhibiting effect on mutans streptococci in pit and fissure plaque of permanent first molars of 6-7-year olds than a repeated application at each 6 months and (3) EC40 exerts an inhibiting effect on mutans streptococci for at least a 6-month duration. Methods: Using a split-mouth design, test molars received EC40 on fissures and pits and control molars remained without treatment. One group of test molars received EC40 at baseline, 6, 12 and 18 months and another group at baseline, 3, 12 and 15 months. Plaque samples were taken from pits and fissures of test and control molars at baseline, 6, 9,12 and 24 months. A mixed ANOVA model was used to analyze the data. Results: The first hypothesis was accepted, the second rejected and the third accepted. Conclusions: Twice a year EC40 application on pits and fissures of permanent first molars of 6-7-year-old children can significantly reduce mutans streptococci numbers for a 6-month period, but the reductions were small. (C) 2007 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据