Parotid ductal saliva fluoride concentrations were determined as an indication of baseline plasma fluoride levels in three groups of children. Group I had been exposed to drinking water containing less than 0.1 ppm F and had not received fluoride supplements. Group II had consumed optimally fluoridated water (1 ppm) since infancy. Group III had consumed water with less than 0.1 ppm F but had re...

Like many elements, fluorine (which generally occurs in nature as fluoride) is beneficial to human health in trace amounts, but can be toxic in excess. The links between low intakes of fluoride and dental protection are well known; however, fluoride is a powerful calcium-seeking element and can interfere with the calcified structure of bones and teeth in the human body at higher concentrations ...

The amount of fluoride found in the bone is usually correlated with the amount of fluoride found either in water or in a person’s diet. The purpose of this study was to evaluate the beneficial incorporation of fluoride into rat bone after prenatal fluoride administration, using microstructural analysis. Fifteen 8week-old female were divided into five groups (one control group and four experimen...

STATEMENT OF PROBLEM The concentration of fluoride in water is usually higher in areas around the coal mines. Zarand region in the south-east of Iran is known for its coal mines. Some studies have shown the high prevalence of fluorosis and some studies reported high levels of fluoride in the region. OBJECTIVES This study aimed to use Geographic Information System (GIS) to assess the relations...

The objective of this study was to detect the fluoride level in the drinking water and the urine of habitants aged 16-55 years living in Inner Mongolia China. Furthermore, fluoride concentration of the brick tea infusion samples which were drunk by Mongolia herdsmen in everyday life living in SumuErga village of Ejin Horo Banner, Inner Mongolia China was also determined. A total of 117 particip...

Fluoride and arsenic are two common inorganic contaminants in drinking water that are associated with impairment in child development and retarded intelligence. The present study was conducted to explore the effects on spatial learning, memory, glutamate levels, and group I metabotropic glutamate receptors (mGluRs) expression in the hippocampus and cortex after subchronic exposure to fluoride, ...

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...

Water samples from 110 public wells in Ohio were analyzed for fluoride content using both an ion-specific electrode and a coIorimeter. In addition to the fluoride testing, analyses were performed on selected known interfering substances in the water. Sixty per cent of the samples differed by > 0.1 ppm fluoride with a mean difference of+ O. 14 ppm. Prescriptions for dietary fluoride supplementat...

of human plasma fluoride concentration. rg6o.-There is a constancy of plasma fluoride content of individuals who use communal water within the range O. 15-2.5 ppm fluoride. With an intake of 5.4 ppm of fluoride in the communal water there is a slight but significant elevation of the plasma concentration. There is no evidence of a marked or prolonged rise of plasma fluoride content following the...

The objectives of this study were to measure dietary fluoride intake in children aged 3-7 years, to correlate dietary fluoride and fluoride content in water for used in schools and to estimate fluoride gained from the daily diet. Fifty food samples were collected in 45 schools under the jurisdietion of the Border Patrol Police Department. The schools were sampled by multiple stratified cluster ...