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Lack of association between obesity and dental caries in three-year-old children.

To investigate whether the obese children are prone to develop dental caries, the cross-sectional data from a Three-year-old Children's Health Survey were evaluated. The body weight, height, body mass index (BMI), and decayed and filled teeth (dft) score were analyzed in 5,133 children. The prevalence of dental caries was not different significantly among different BMI groups. There were no significant differences in the dft score of carious children among different BMI groups. Little or no relationship was found between BMI and dft score. We conclude that there is no relationship between carious deciduous teeth and weight status in three-year-old children.