Where does it spring from? Fluoride is naturally present in rocks. It made its way into drinking water when people started using ground water instead of surface water. In the mid 1960s and 1970s when deep hand pumps were introduced, fluoride found its way into people

Exposure to excessive amounts of fluoride (F

The authors to examine the relationship between environmental cadmium exposure and dental caries in children 6

Dental Offices May Be Source Of Mercury Pollution US: April 15, 2008 NEW YORK - Dental practices may be a source of a dangerous form of mercury contamination in the water supply, a small study suggests. In tests of wastewater from two dental practices, researchers at the University of Illinois found high levels of methylated mercury -- a chemically altered form of the metal that is toxic to the brain and nervous system. Mercury is part of the silver dental fillings that have long been used to treat cavities; in this form, mercury is believed to be safe.

The soil samples from selected fluoride environments in Dindigul district of Tamil Nadu is South India were analyzed for total and soluble fluoride. (2007)

Mercury is nephrotoxic and dental amalgam is a source of mercury exposure. Children 6

Toothpastes contain a number of chemicals that carry out its essential functions

The Bureau of Indian Standards (BIS) has toothpaste specifications to control fineness of paste, presence of hard and sharp-edged particles, quantum of fluoride, stability, microbial purity, pH

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The present work aims to study the level of fluoride in bore well, open well, and in handpump water samples of different places of Virudhunagar district, Tamil Nadu, and also to analyse other water quality parameters, like pH, electrical conductivity, turbidity, acidity, alkalinity, total solids, chlorides, iron, sodium, potassium, fluorides and total hardness.