Clinical and Roentgenographic Examinations for Dental Caries in Grand Rapids, Mich.

Abstract
Dental examinations of selected children in this fluo-ridation study were supplemented with bite-wing X-rays from which determinations were made of caries prevalence and caries depth. Clinical and X-ray findings showed similar decreases in dental caries. The X-ray findings suggest that fluoride retards the development of caries and prevents its inception.
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