Widenheim J, Birkhed D, Hase J C, Olavi G
Department of Community Dentistry, Malmöhus County Council, Lund, Sweden.
Community Dent Oral Epidemiol. 1989 Apr;17(2):83-6. doi: 10.1111/j.1600-0528.1989.tb00594.x.
The aim of the present investigation was to follow the caries incidence in 126 13-yr-old children who experienced a 3-yr interruption of a supervised weekly mouthrinse program with 0.2% NaF solution (interrupted rinsing-, IR-group). 143 children, 13 yr old, who continuously participated in the NaF mouthrinse program, served as a comparison group (continuous rinsing-, CR-group). Dental caries and restorations were diagnosed on bitewing radiographs; thus only approximal tooth surfaces were considered. The caries incidence over the 3-yr period was 1.84 DFS in the IR- and 1.77 in the CR-group. The corresponding FS-values were 0.67 and 0.25, respectively. Two years later, i.e. when the children were 18-yr-old and the IR-group had had 2 yr back on the school-based mouthrinse program, they were examined again. The difference in caries incidence between 16 and 18 yr of age was still small, 1.32 DFS in the IR- and 1.22 in the CR-group. The corresponding FS-values were 0.63 and 0.49, respectively. Thus, this study showed that the 3-yr interruption of the NaF mouthrinse program resulted in a small, statistically non-significant increase in caries, mostly as regards the number of fillings, on approximal tooth surfaces.
本研究的目的是追踪126名13岁儿童的龋齿发病率，这些儿童经历了为期3年的、有监督的每周用0.2%氟化钠溶液漱口水项目的中断（中断漱口组，IR组）。143名13岁且持续参与氟化钠漱口水项目的儿童作为对照组（持续漱口组，CR组）。通过咬合翼片X线片诊断龋齿和修复情况；因此仅考虑邻面牙面。3年期间的龋齿发病率在IR组为1.84个龋失补牙面（DFS），在CR组为1.77个。相应的龋补牙面（FS）值分别为0.67和0.25。两年后，即当儿童18岁且IR组已重新进行了2年的校内漱口水项目时，再次对他们进行检查。16岁至18岁之间的龋齿发病率差异仍然很小，IR组为1.32个DFS，CR组为1.22个。相应的FS值分别为0.63和0.49。因此，本研究表明，氟化钠漱口水项目中断3年导致邻面牙面龋齿有小幅增加，但在统计学上无显著差异，主要体现在补牙数量方面。
