J Korean Acad Oral Health.  2020 Sep;44(3):130-137. 10.11149/jkaoh.2020.44.3.130.

The relationship between metabolic syndrome components and the number of remaining teeth in Korean adults

  • 1Department of Dental Hygiene, Dong-Eui University, Busan, Korea
  • 2Oral Hygiene Science Research Institute, Dong-Eui University, Busan, Korea


The purpose of this study was to evaluate the association between metabolic syndrome and the number of present teeth in a Korean adult population.
We analyzed the effect of the components of metabolic syndrome in adults aged older than 45 years on the number of present teeth using raw data from the 6th National Health and Nutrition Survey (2013-2015). For the data analysis, complex samples multivariable logistic regression analysis was performed by correcting the disturbance variables as demographic and socioeconomic variables (gender, age, education level, household income, residential area, family type, and economic activity) and oral health-related behavioral variables (smoking, alcohol consumption, tooth brushing frequency, interdental tooth brushing, flossing, and dental checkups).
On analyzing the association between the effects of metabolic syndrome components on less than 20 present teeth by adjusting for demographic and socioeconomic variables and correcting for both general characteristics and oral health-related behavioral variables, the risk of having less than 20 present teeth was 1.25 times (95% confidence interval 1.08-1.46) higher in the high fasting glucose group compared to that in the non-high fasting glucose group. Metabolic syndrome composed of three or more components was significantly associated with less than 20 present teeth.
It is necessary to continuously educate Korean adults about oral health behavior. Appropriate interventional programs to prevent oral disease should be provided when patients with metabolic syndrome visit dental clinics and public health centers.


Adults; Elderly; Metabolic syndrome; Number of remaining teeth
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