Objectives: This study aimed to determine and facilitate provisions for the unmet dental needs of Koreans, stratified by time, influencing factors, and research trends, through a systematic review of related published studies since 2006. Methods: this review focused on previous studies published between January 2006 and November 2019 that analyzed influencing the factors underlying the unmet dental needs of koreans. We followed the guidelines set for each phase of research and selected the final 32 studies that met the selection criteria for the analysis. Results: The number of studies has rapidly increased since 2015 (22 studies, 68.7%). the were 68.9% in 2006, 25.9% in 2009, 41.3% in 2010- 2012, and 33.3% in 2013-2015 for adults and 27.9% in 2010, 24.6% in 2015, and 16.1% in 2017 for the rates of older adults. the rates of unmet dental needs related to economic factors, were 38.6% in 2006, 41.4% in 2007-2009, and 35.9% in 2013-2015 for adults and 50.5% in 2010 and 41.2% in 2015 for the older adults. There were common influencing factors for unmet dental needs. the rate of unmet dental needs was increased by with female gender, younger age, single marital status, low family income, low educational level, worsened subjective health condition, and the presence of chronic diseases.
Conclusions: Standardized studies with more accurate definitions and assessment tools are required.
however, our study emphasizes the need for a policy intervention that accounts for the characteristics of subjects to reduce unmet dental needs.