Nutrient intake and dental caries in the primary dentition.

An extensive literature has assessed the influence of diet on dental caries, but to date dietary influences on caries of the primary dentition have not been studied widely. This study examined the role of specific nutrients in the caries experience of preschool children. A total of 628 children ages 2 to 6 years received a dental examination, parent interview, and a seven-day diet diary. The diary was completed adequately for 269 children (43%). The average daily intakes of 15 nutrients were computed and compared with recommended dietary allowances (RDA); total sugar consumption and Ca/P ratio were calculated. Each child's gender, age, fluoride history, previous dental experience, and nutrient intakes were examined as independent variables. Stepwise logistic regression showed the combination of categories most predictive of caries was older age, suboptimal fluoride consumption, and recall dental visit. No association was apparent between dental caries and the intake of specific nutrients, total sugar consumption, or Ca/P ratio.