ABSTRACT
OBJECTIVES@#To estimate the prevalence of edentulism according to the socio-demographic variables of Korean adults between 2007 and 2018 and to analyze the trends. @*METHODS@#This study was conducted using raw data from the Korea National Health and Nutrition Examination Survey (KNHANES) from 2007 to 2018. Edentulism was defined as the absence of upper and lower teeth or the retained root of the missing teeth. To obtain the prevalence of edentulism, complex sample frequency analysis and regression analysis were performed according to the socio-demographic variables to represent the national population. The Korean population structure in 2005 was exploited as a standard population to calculate age-standardized edentulism. @*RESULTS@#The prevalence of edentulism in 2016-2018 was 9.7% in the Korean elderly, and the change of age-standardized edentulism steadily declined over time from 2007, 12.8%. In particular, it decreased by approximately 20% in the period between 2016 and 2018 compared to that in 2007 for those in their 80s. The trend of the prevalence according to gender decreased significantly in women. According to the level of education, the greatest decrease was seen in the group with the lowest education, although the prevalence itself was higher than that seen in those who were more educated. @*CONCLUSIONS@#The prevalence of edentulism among the older Korean population has decreased over time. However, the concern is on those with lower education and men as these groups are still at higher risk for edentulism.
ABSTRACT
OBJECTIVES@#To estimate the prevalence of edentulism according to the socio-demographic variables of Korean adults between 2007 and 2018 and to analyze the trends. @*METHODS@#This study was conducted using raw data from the Korea National Health and Nutrition Examination Survey (KNHANES) from 2007 to 2018. Edentulism was defined as the absence of upper and lower teeth or the retained root of the missing teeth. To obtain the prevalence of edentulism, complex sample frequency analysis and regression analysis were performed according to the socio-demographic variables to represent the national population. The Korean population structure in 2005 was exploited as a standard population to calculate age-standardized edentulism. @*RESULTS@#The prevalence of edentulism in 2016-2018 was 9.7% in the Korean elderly, and the change of age-standardized edentulism steadily declined over time from 2007, 12.8%. In particular, it decreased by approximately 20% in the period between 2016 and 2018 compared to that in 2007 for those in their 80s. The trend of the prevalence according to gender decreased significantly in women. According to the level of education, the greatest decrease was seen in the group with the lowest education, although the prevalence itself was higher than that seen in those who were more educated. @*CONCLUSIONS@#The prevalence of edentulism among the older Korean population has decreased over time. However, the concern is on those with lower education and men as these groups are still at higher risk for edentulism.
ABSTRACT
OBJECTIVES: The objectives of this study were to investigate the changes in bisphenol A (BPA) concentrations in urine from before to after sealant filling and the relationship between BPA and the number of teeth with sealed surfaces. METHODS: Thirty-one children aged 6 and 7 years from three elementary schools in Daegu city who did not have any sealant and resin filling were selected as subjects. Urine samples were collected before and after sealant filling until 24 hours, with informed consent from their caregivers. The BPA concentration in all the collected urine samples was analyzed at Seegene Medical. Statistical analysis was performed using the Friedman test, Scheirer-Ray-Hope test, and the repeated-measures generalized linear mixed model of SPSS version 22.0. RESULTS: The BPA concentrations increased from 3.49-μg/g creatinine before to 4.91-μg/g creatinine 2-3 hours later and to 4.15-μg/g creatinine after 24 hours. The more teeth with sealed surfaces, the higher the BPA concentration in children, but the difference was not statistically significant (P>0.05). CONCLUSIONS: The BPA concentrations were highest at 2–3 hours after sealant filling and decreased at 24 hours. Exposure to the sealant appears to have a meaningful correlation with the concentration of BPA in the urine of children.
Subject(s)
Child , Humans , Caregivers , Creatinine , Informed Consent , ToothABSTRACT
OBJECTIVES: Periodontal disease is an inflammatory disease fundamentally initiated by chronic bacterial infection. Just as the periodontal tissues mount an immune inflammatory response to bacteria and their products, systemic challenges owing to these inflammatory agents also induce a major vascular response. It is proposed that periodontitis also needs to be considered as a chronic disease that may decrease erythrocyte count and consequently lower hemoglobin concentration (Hb%). Therefore, the aim of this study was to elucidate the correlation between anemia and blood cell count according to periodontal state. METHODS: Data from the Fifth Korea National Health and Nutrition Examination Survey (KNHNES) were used to analyze the prevalence of anemia and blood cell counts according to the periodontal status. Complex logistic regression analysis was used to assess the relationship of anemia with periodontal status. The data were analyzed using t-test, ANOVA, and logistic regression using SPSS, and 95% confidence intervals were computed. RESULTS: A significant difference was observed for gingivitis (odds ratio [OR], 1.436 [95% confidence interval [CI], 1.072-1.924]) but not for periodontitis (OR, 1.353 (95% CI, 0.947-1.934). CONCLUSIONS: The present study provides further evidence that gingivitis has systemic effects and may cause anemia. However, periodontitis was not significantly associated with anemia. Further, there was no significant difference in periodontal status after adjustment for age, gender, and other factors.