Journal List > J Korean Acad Oral Health > v.42(4) > 1122279

Che and Park: Factors associated with the persistence of unmet dental care needs



The purpose of this study was to investigate effective predictive factors of the persistence of unmet dental care needs.


Data were obtained from the Korea Health Panel studies of 2011 and 2015, and 4,406 subjects, aged 18 years or older, were included in this study. Of these subjects, those who persistently experienced unmet dental care needs over the three-year period were identified. Panel logistic regression analyses were conducted to identify socio-demographic and health-related factors associated with the persistence of unmet dental care needs in two groups, those aged between 18–64 years and over 65 years.


Approximately 12% of subjects showed a persistence in unmet dental care needs. Marital status, education level, household income, type of health insurance, and self-rated health status all significantly correlated with the persistence of unmet dental care needs in both age groups.


Efforts should be made to identify factors related to the persistence of unmet dental care needs in order to improve patient accessibility to dental care services.

Figures and Tables

Table 1

General characteristics of the subjects (n=4,406, year 2015)

Table 2

Difference of persistence of unmet dental care need according to general characteristics by age


P-values by Chi-squared test.

Table 3

Multivariate analysis of factors associated with persistence of unmet dental care needs by age


OR:odds ratio, CI:confidence interval.

*P<0.05, P<0.01, P<0.001 by panel logistic regression.

‘Not married’ and older than 65 years were omitted from the analysis because of their small sample size.

There were no ‘college students’ aged over 65.


This study was supported by 2017 Research Grant from Kangwon National University (No. 620170150).


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