Fluoridating water systems, facts About Fluoride and Water Fluoridation
People opposed to fluoridation also argue that since fluoride-rich toothpaste is available, fluoride needn't be added to water. It is also known as sodium silicofluoride.
Facts About Fluoride and Water Fluoridation
Groundwater can contain much higher levels, however. Occurrences Fluoride naturally occurring in water can be above, at, or below recommended levels. The Australian government review states that water fluoridation is the most effective means of achieving fluoride exposure that is community-wide. Alex Mit Shutterstock Water fluoridation is the addition of the chemical fluoride to public water supplies, two year dating gifts for the purpose of reducing cavities.
Today opponents rarely argue that fluoridation is a communist plot, as they once did. They contend that this public health practice is an infringement on individual freedoms and, despite the assurances of health organizations, that it is dangerous.
Facts About Fluoridation
Fluoridation is however still clearly necessary in the U. Three such outbreaks were reported in the U. About two-thirds of the U. The exception is Portland, Ore. It is a powder or very fine crystal that is easier to ship than fluorosilicic acid.
Cavities result when the rate of demineralization exceeds the rate of remineralization, typically in a process that requires many months or years. Their reasons have evolved over time. Although no major differences between natural and artificial fluoridation were apparent, the evidence was inadequate for a conclusion about any differences. It is widely used, but less so among the poor. These produce organic acids when carbohydrates, especially sugar, are eaten.
Here, aesthetic concern is a term used in a standardized scale based on what adolescents would find unacceptable, as measured by a study of British year-olds. The change was recommended because most people in the United States have access to more sources of fluoride than they did when the guidelines were first put in place. This did not affect the York conclusions.
By replacing the hydroxyl molecule on hydroxylapatite, fluoride makes the tooth more resistant to acid attack from bacteria. High fluoride levels have been found in other foods, including barley, cassava, corn, rice, taro, yams, and fish protein concentrate.
The most obvious health effect of excess fluoride exposure is dental fluorosis, which when mild includes white streaks, and when severe can include brown stains, pits and broken enamel. For example, milk powder fluoridation is used in rural Chilean areas where water fluoridation is not technically feasible. Sodium fluoride NaF was the first compound used and is the reference standard. Fluoridation controversy Since its introduction beginning in the s, fluoridation has been the source of considerable controversy. Is fluoridated water better for your health or not?
Fluoride's adverse effects depend on total fluoride dosage from all sources. The goal of water fluoridation is to prevent tooth decay by adjusting the concentration of fluoride in public water supplies.
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