Abstract:In the early part of this century, re¬ searchers observed that persons with "mottled teeth," or dental fluorosis, ex¬ perienced fewer dental caries than per¬ sons without that pattern of tooth dis¬ coloration. Naturally occurring fluoride in the drinking water was identified later as being responsible for this effect on tooth enamel. Community studies conducted in the 1940s established that as the level of natural fluoride in the drinking water increased, the preva¬ lence of dental caries declined. These studi… Show more
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