Objectives: This study aims to look back on research trends before research papers were published in the journal and provide a future direction of the KOHS to go and basic data to set a research direction of dental hygiene studies, by analyzing research papers published in the KOHS until 2020, overall. Methods: For this study, a total of 157 papers published in the KOHS until December 2020 were analyzed. Results: Among academic categories, educational dental hygiene was the highest at 43.3%, and quantitative research was the highest at 77.7% as a research method. The subjects of the study were general adults (15.3%), and the questionnaire method was the most common data collection method (69.4%). As for the data analysis method, the independent sample t-test was the highest at 44.6% as a result of overlapping treatment. The total number of keywords was 592, and ‘dental hygienist’ was the highest with 26 articles (4.39%). Conclusions: It is considered that this study will help future dental hygiene research to set its direction and serve as basic data to make the KOHS advance as a more developed academic journal, by analyzing papers published in the KOHS and understanding research trends in the field of dental hygiene.