Objectives The purpose of this study was to suggest directions for the future oral health promotion through oral health education. We analyze changes in social awareness of oral health education according to the period from the 1st to the 4th National Health Promotion Comprehensive Plan.
 Methods The data for this study was collected through texts posted on Naver, Daum, Google, YouTube, and Twitter through a keyword search of ‘oral + education’. The period for collecting data was from January 1, 2002, when the 1st National Health Promotion Plan began, to December 31, 2020, when the 4th plan was completed. The frequencies of top 30 keywords were analyzed. In addition, the structural characteristics of the semantic network of keywords in each period were confirmed, and centrality analysis, QAP correlation analysis, and co-occurrence analysis were performed.
 Results There were changes in the priorities of key keywords depending on the timing of the National Health Promotion Comprehensive Plan. After the third period, the frequency of ‘education’ and ‘health’ increased, and the frequency, centrality degree, and eigne-vector degree of ‘public health center’ increased compared to ‘elementary school.’ All correlation coefficients for each period were statistically significant. As a result of analysis of the frequency of co-occurrence, ‘health→education’ appeared highly in the 1st, 2nd, and 3rd periods, while ‘education→implementation’ appeared highly in the 4th period.
 Conclusions The impact of oral health policies was reflected in social awareness related to oral health education. However, as the correlation between each period was significant, there was no significant difference in the level of public awareness according to the period of the National Health Promotion Comprehensive Plan. The level of education implementation is low compared to the public's awareness of the need for oral health education, so efforts are needed to implement more universal oral health education in the future.