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Background/Objectives: The excessive consumption of free sugars adversely impacts health, contributing to systemic disorders and significantly increasing the risk of dental caries. Children are particularly vulnerable to dental caries due to their dietary habits and oral hygiene practices. This study aimed to examine the relationship between sugar intake and dental caries experience in a sample of children aged 6–12 years. Methods: Data were analyzed from the National Health and Nutrition Examination Survey (NHANES) covering the years 2011–2016. This cross-sectional study utilized nationally representative data from NHANES, which provides comprehensive health assessments on the U.S. population. This study focused on 3658 children aged 6–12 years. Free sugar intake and its association with dental caries were evaluated using the Decayed, Missing, and Filled Teeth (DMFT) index, a widely accepted measure for assessing cumulative caries experience in permanent teeth. Demographic and socioeconomic factors were also accounted for. The sample primarily consisted of generally healthy children, with mild to moderate health conditions included in the analysis. Results: The average Decayed, Missing, and Filled Teeth (DMFT) score was 1.69 (SD = 2.61). Untreated dental caries affected 19.1% of the sample, with disproportionately higher rates observed among Mexican American children (23.8%), children from lower socioeconomic backgrounds (24.2%), those with less-educated parents (25.1%), and overweight children (22.9%). Mean daily free sugar intake was 72.46 g (SD = 50.45), with significant variations across race/ethnicity, parental education, and gender. A statistically significant association was found between free sugar intake and dental caries in U.S. children (p < 0.001). Conclusions: Free sugar intake is strongly associated with an increased risk of dental caries. Disparities in caries prevalence were evident based on race/ethnicity, socioeconomic status, and parental education levels. Regulating sugar intake and promoting dietary education are effective strategies to reduce the risk of dental caries and improve oral health outcomes among children.
Cheever et al. (Wed,) studied this question.