Three-year root caries increments: implications for clinical trials.


Seven hundred and ninety-six adult subjects (mean age, 39.9 years) received visual-tactile examinations for root caries over a three-year period. All subjects were employed or were the spouses of employees and resided in fluoride-deficient communities on Long Island, New York. During the three-year observation period, 81.4 percent of the subjects did not… (More)


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