fa تعیین شاخص DMF در کارگران کارخانجات شهر صنعتی ایلام و ارتباط آن با میزان فلو ئور آب آشامیدنی ایمنی Safety پژوهشي Research <p align="right">چکیده</p> <p> <strong> Background and aims </strong></p><p>  The fluoride of water can increase the resistance of enamel of teeth against dental caries. In places with low fluoride level in potable water, dental caries is very high before puberty. The aim of this study was to determine the fluoride level of potable water of Ilam- Iran and it's relation to DMF criteria in workers of industrial city of Ilam. </p><p> <strong> Methods </strong></p><p> <strong> </strong>This study was done in fall of 1999 on the 320 workers which their age was between 20-34 (x ± SD:28.1 ± 1) years old by descriptive analytical method. The factories were selected by  cluster sampling and workers were selected by random sampling from different socio-economic  status. </p><p> <strong> Results </strong></p><p> <strong> </strong>The mean concentration of fluoride in potable water was 0.28 mg/l which is lower the standard limit. The average value for DMF Index was 4.3 in workers. There was a significant negative correlation between fluoride control of potable water and number of DMF teeth</p><p> (r=0.1 , p= 0.01 ). The lowest value of DMF index was in range of 20-23 years old. When the fluoride content of water was higher, the dental caries was lower. </p><p> <strong> Conclusion </strong></p><p> <strong> </strong>The addition of fluoride to potable water to about 1mg/l, health educational  programs and fortification of foods in Industrial regions and factories is recommended. </p> شاخص DMF ،فلوئور،پوسیدگی دندان،ایلام، آب آشامیدنی DMF, Fluoride, dental caries, Ilam, potable water 64 68 http://ioh.iums.ac.ir/browse.php?a_code=A-10-3-9&slc_lang=fa&sid=1 F. Shidfar فرزاد شیدفر 1360031947532846003032 1360031947532846003032 Yes M. Aghilinejad ماشائ اله عقیلی نژاد 1360031947532846003033 1360031947532846003033 No A. Ameri احمد عامری 1360031947532846003034 1360031947532846003034 No SA. Motavalian سید علی متولیان 1360031947532846003035 1360031947532846003035 No A. Radfar امیر رادفر 1360031947532846003036 1360031947532846003036 No SH. Hoseini شریعه حسینی 1360031947532846003037 1360031947532846003037 No