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Dental fluorosis is caused by a higher than normal amount of fluoride ingestion whilst teeth are forming. Primary dentine fluorosis and enamel fluorosis can only happen during tooth formation, so fluoride exposure occurs in childhood. Enamel fluorosis has a white opaque appearance which is due to the surface of the enamel being hypomineralised ...
In most cases, fluorosis is cosmetic and isn't harmful to your health. According to Henderson, it's more common when children use multiple sources of fluoride over a long period of time.
Fluorosis may occur when there is chronic and excessive exposure to fluoride during the years of tooth development. [ 3 ] [ 10 ] Fluoride is a naturally occurring mineral in water, although some regions have higher levels than others, and in some areas fluoride is added to water supplies in low levels to help prevent tooth decay.
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As primary teeth are being developed, the ingestion of fluoride causes the teeth to form stronger and more resistant to cavities, although this increases the risk of dental fluorosis. [10] [11] [12] Water and milk fluoridation are two forms of systemic fluoride therapy that are effective at preventing dental cavities. [13]
Fluorosis is a condition resulting from the overexposure to fluoride, especially between the ages of 6 months and 5 years, and appears as mottled enamel. [3] Consequently, the teeth look unsightly, although the incidence of dental decay in those teeth is very small.
The only generally accepted adverse effect of fluoride at levels used for water fluoridation is dental fluorosis, which can alter the appearance of children's teeth during tooth development; this is mostly mild and usually only an aesthetic concern. Compared to unfluoridated water, fluoridation to 1 mg/L is estimated to cause fluorosis in one ...
The authors also noted that adding fluoride to drinking water may increase the number of people with dental fluorosis, a mostly cosmetic condition that can leave the teeth with white flecks, spots ...