Obesity is Inversely Related to the Risks of Dental Caries in Korean Adults

Abstract

Objective

This study investigated whether obesity is linked with dental caries. The present study hypothesized that obesity may influence the number or prevalence of dental caries in Korean adults.

Subjects and Methods

Data was derived from Korea National Health and Nutrition Examination Survey performed at 2008-2010. Lifestyle, sociodemographic, and biochemical variables were analyzed. Indices related with obesity, sarcopenia, and metabolic syndrome were investigated. Finally, caries index and oral health behaviors were included for the analysis.

Results

The caries index was inversely associated with increasing body mass index (BMI) and body fat quartile (all p-values less than 0.01). Subjects with high waist circumference who met the inclusion criteria of metabolic syndrome were less likely to have decayed tooth (p-value = 0.0009). Subjects with a BMI of 25 or more showed about 20% less prevalence of dental caries experience than normal individuals with a BMI of 18.5 to 23 glucose (Odds ratio [95% confidence intervals] =0.808 [0.684-0.956]). Similarly, subjects with total body fat in the highest quartile revealed about 20% less prevalence of caries experiences that those with body fat proportion in the lowest quartile (0.84 [0.672,1.049]).

Conclusions

Obesity was inversely associated with occurrence or severity of dental caries in Korean adults.

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