نتایج جستجو برای: drinking water fluoride content
تعداد نتایج: 962794 فیلتر نتایج به سال:
Background & Aims: Fluoride is an important mineral in the prevention of dental caries (decay). Most parts of received fluoride of human body are obtained by drinking. In this research, the relationship between fluoride sources of drinking water and DMFT index of West Azerbaijan’s Piranshahr and Poldasht guidance schools were studied. Materials & Methods: In a cross-sectional study using a...
Background & Aim: Fluoride concentration in drinking water within the optimal range reduces dental caries and prevents dental fluorosis. This study was conducted to determine the level of fluoride in drinking water resources in Torbat Heydariyeh City in 2016-17. Methods: This descriptive cross-sectional study was conducted on 22 wells used to supply drinking water of Torbat Heydariyeh City. A ...
BACKGROUND Artificial fluoridation of drinking water to improve dental health has long been a topic of controversy. Opponents of this public health measure have cited the possibility of bone cancer induction. The study objective was to examine whether increased risk of primary bone cancer was associated with living in areas with higher concentrations of fluoride in drinking water. METHODS Cas...
The study was undertaken to determine serum/urinary fluoride status and comparison of free T4, free T3 and thyroid stimulating hormone levels of 8 to 15 years old children with and without dental fluorosis living in an endemic and non-endemic fluorosis area. A sample group of 60 male and female school children, with or without dental fluorosis, consuming fluoride-contaminated water in endemic f...
Results The disease mainly affects males from poor socio-economic backgrounds who are involved in paddy farming . Mild proteinuria was present but urinary sediments were normal. Renal biopsies were reported as interstitial nephritis. Significant predictors of kidney disease in these patients included age, history of smoking, being under treatment for hypertension and drinking well water in the ...
بررسی میزان فلوراید آب آشامیدنی مناطق روستایی شهرستان رفسنجان در بهار و تابستان 1394: یک گزارش کوتاه
Background and Objectives: Fluoride concentration of 0.5 to 1.5 mg/l in drinking water has a positive effect on prevention or reduction of teeth decay. Today, fluoride needed to prevent teeth decay is primarily provided from drinking water. The aim of this study was to survey the amount of fluoride in drinking water in rural areas of Rafsanjan and its comparison with National and World Health O...
Abstract Background and Objectives: Fluoride is one of the anions existed in water and soil. Its amount is not the same in different kind of water. Since the most of body's need to fluoride should be provided by drinking water, this study was aimed at determining the fluoride level in water supply of Gorgan rural regions. Materials and Methods: In this Cross-Sectional study, the subjects were a...
OBJECTIVE To assess the effects of provided fluoride-safe drinking-water for the prevention and control of endemic fluorosis in China. DESIGN A national cross-sectional study in China. SETTING In 1985, randomly selected villages in 27 provinces (or cities and municipalities) in 5 geographic areas all over China. PARTICIPANTS Involved 81 786 children aged from 8 to 12 and 594 698 adults ag...
In this data article, we evaluated the daily fluoride contents in 20 household desalinators working by reverse osmosis (RO) process in Bushehr, Iran. The concentration levels of fluoride in inlet and outlet waters were determined by the standard SPADNS method using a spectrophotometer (M501 Single Beam Scanning UV/VIS, UK). The fluoride content in outlet waters were compared with EPA and WHO gu...
AIM The aim of the present study was to evaluate the relationship of drinking water fluoride levels with children's intelligence quotient (IQ). MATERIALS AND METHODS Water was collected from initially identified endemic fluoride regions according to the geological research of Government of India. Fluoride concentration of the water was assessed by utilizing fluoride ion selective electrode, O...
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