Fluorine is one of the most common elements in the Earth’s crust. Fluoride is recognized to be the most effective caries-preventive agent. The main sources of fluoride for people are generally food and drinking water. For this reason, the fluoride and also the metal ion (Ca, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb and Zn) concentrations in the drinking waters collected from the city center of Kayseri...

BACKGROUND The purpose of the study was to investigate the relationship between fluoride ions in drinking water and the incidence of dental fluorosis in some endemic areas of Bongo District, Ghana. METHOD Two hundred children were randomly selected from various homes and taken through a questionnaire. Their teeth were examined for the detection of dental fluorosis using the Dean's specific in...

Two analytical procedures, dry combustion and acid extraction, were compared for the preparation of soft animal tissues and other biological samples for determination of fluoride with an ion selective electrode. Both methods were suitable for determining F in the range of 0.5 to 10.0 μg/g with less than 6% error. The combustion method is less laborious but is more accurate. The extraction metho...

Fluoride is recognized as an effective agent for dental caries prevention. Generally, the main source of fluoride intake is drinking water. In this study, fluoride content in 18 commercial brands of bottled waters was investigated. Six samples from each batch of 18 Iranian commercial brands of bottled waters were supplied. The fluoride content of samples was analyzed by Fluoride Ion Selective E...

The purpose of this investigation was to determine the effect of several point-of-use water conditioning systems on the fluoride concentration in community fluoridated water. Point-of-use water conditioning systems attach at the sink to provide the user with protection from certain water contaminants. A sampling apparatus was constructed to allow collection of water samples before and after con...

A method for the visual detection of fluoride is presented using an aqueous solution of Pyrocatechol Violet (PV), which changes its color from yellow to blue by the formation of a ternary complex with Zr(H2O)2EDTA; also, the blue color of PV-Zr-EDTA readily shifts to orange red upon the addition of a moderate concentration of fluoride. The mechanism has been interpreted by a ligand-exchange rea...

Fluorosis and Caries Experience Following Early PostNatal Fluoride Supplementation: A Report of 19 Cases. A study of 19 cases of early post-natal supplementation at levels of O.5 and 1.0 mg of fluoride per day has shown a greater prevalence and severity of very mild tIuorosis among those also consuming optimally tluoridated water. Fluorosis was less prevalent among those consuming suboptimally ...