Objectives: The aim of this study was to evaluate the medium-and long-term effect of “brush on fluoride gel” application which is a simplified preventive method in a city center including whole primary schools. Materials and Methods: In 2007, of the 2348 first grade primary school children (born in 1999) being teached at 37 primary school at Kirikkale city center, 480 were selected, and equally divided as control and study groups. While in study group, all children had routinely get brush on fluoride gel application four-times a year during 3?years (total 12?times), using 2 percent neutral fluoride gel; others were subjected to oral hygiene education at least one time a year. All the examination procedures were yearly performed using World Health Organization (WHO) criteria at the first-second and fourth year. Results: While there was no statistically significant difference between the groups at baseline, it was not true at 4th years DMFT results (DMFT values for control and study groups were 0,33±0,72 and 0,69±1,15, respectively. p=0,001). Similar trend was observed at baseline and 4th year results for caries prevalence (p values for baseline and 4th year comparisons were p=0,049 and p=0,004, respectively). Conclusions: Considering as a simplified oral health preventive programs which may be important to established tooth-brushing habit could lead to an observational difference in caries prevalence. However, various primitive preventive methods could need to be supported by the risk-based additional preventive applications in high risk population
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机译：目的：本研究的目的是评估“刷氟化物凝胶”应用的中长期效果，这是在包括整个小学在内的城市中心的一种简化预防方法。资料与方法：2007年，在基里卡莱市中心的37所小学任教的2348名一年级小学生（出生于1999年）中，选择了480名，并平均分为对照组和研究组。在研究组中，所有孩子在3年内（每年12次）使用4％的中性氟化物凝胶，每年例行四次刷氟化物。其他人每年至少接受一次口腔卫生教育。所有检查程序均在第一，第二和第四年按照世界卫生组织（WHO）的标准进行。结果：尽管基线时各组之间无统计学差异，但第4年DMFT结果并非如此（对照组和研究组的DMFT值分别为0.33±0.72和0.69±1.15） p = 0,001）。在基线和第4年龋病患病率结果中观察到了相似的趋势（基线和第4年比较的p值分别为p = 0,049和p = 0,004）。结论：考虑到简化的口腔健康预防计划可能对建立刷牙习惯很重要，可能导致龋齿患病率的观察差异。但是，高风险人群中基于风险的其他预防应用可能需要支持各种原始预防方法
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