Fluoridation of Public Water Supplies

Cariostatic Effect and Metabolism of Ammonium Fluosilicate

“…There was no difference in the production of incisor striations. 5. Ammonium fluosilicate was as effective as sodium fluoride in inhibiting caries in the white rat.…”

Reconnaissance of ground-water resources in the Blue Grass Region, Kentucky

“…The median content of fluoride in water from all other aquifers is less than 1.5 ppm; however, many individual analyses show more than 1.5 ppm of fluoride, and water from one spring in the Lexington group contained 15 ppm of fluoride. It has been shown (Maier, 1950) that about 1 ppm of fluoride in water is sufficient to decrease the incidence of dental caries (decay of teeth) when the water is consumed by children whose teeth are developing. Fluorosis, or mottling of the tooth enamel, may become evident if, during the period of tooth development, the water consumed contains more than about 1.5 ppm of fluoride.…”

A Rational Approach to Fluoridation

“…This extreme variation in water consumption may account, in part, for mild dental fluorosis in some children of a community served by water containing only 1.0 ppm of fluoride while other children in the same community have numerous caries. Maier (16) reports that Charlotte, N .c., offsets the seasonal variation in water consumption by adjusting the fluoride content of the water each month, from 1.1 ppm in January to only 0.6 ppm in July.…”