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Fluoride (/ ˈ f l ʊər aɪ d, ˈ f l ɔːr-/) [3] is an inorganic, monatomic anion of fluorine, with the chemical formula F − (also written [F] −), whose salts are typically white or colorless. Fluoride salts typically have distinctive bitter tastes, and are odorless.
Fluoride monitor (at left) in a community water tower pumphouse, Minnesota, 1987. Fluoridation does not affect the appearance, taste, or smell of drinking water. [1] It is normally accomplished by adding one of three compounds to the water: sodium fluoride, fluorosilicic acid, or sodium fluorosilicate.
Dr. Dean's research on the fluoride-dental caries relationship, published in 1942, included 7,000 children from 21 cities in Colorado, Illinois, Indiana, and Ohio. The study concluded that the optimal amount of fluoride which minimized the risk of severe fluorosis but had positive benefits for tooth decay was 1 mg per day, per adult.
How did fluoride end up in tap water? Municipalities in the United States began adding fluoride to drinking water in 1945 in an attempt to support good tooth health in children, according to the CDC .
Fluoride has been added to public water supplies in the U.S. since the mid 20 th century, when research made it clear that fluoride in the water could significantly reduce tooth decay, when ...
Fluoride serves to prevent or reverse tooth decay and stimulate new bone formation, according to the NIH. In 1945, Grand Rapids, Mich. became the first city in the world to fluoridate its drinking ...
Water fluoridation is the controlled addition of fluoride to a public water supply to reduce tooth decay, and is handled differently by countries across the world. [2]Water fluoridation is considered very common in the United States, Canada, Ireland, Chile and Australia where over 50% of the population drinks fluoridated water.
Fluoride was first added to the drinking water for the Victorian town of Bacchus Marsh in 1962, with Melbourne beginning fluoridation in 1977. [44] The towns of Portland and Port Fairy have naturally occurring fluoride in their drinking water. [45] As of October 2024, approximately 90% of the Victorian population had fluoridated water. [45]