OBJECTIVE: The purpose of the study was to compare the oral health attitudes and behaviors of medical and dental students/interns during the Corona pandemic in Saudi Arabia using Hiroshima University Dental Behavioral Inventory (HU-DBI). SUBJECTS AND METHODS: This cross-sectional study was conducted to assess the oral health attitudes and behaviors of dental and medical students/interns in Saudi Arabia using an online Hiroshima University-Dental Behavioral Inventory (HUDBI). An English version of the questionnaires consisting of personal information and 20 HUDBI items were responded by the 638 (46.8%) dental and 726 (53.2%) medical students/interns. The mean score of oral health attitude and behavior of the study participants was calculated based on 12 point scale of the HUDBI items. The Mann-Whitney U and Kruskal-Wallis tests compared the HUDBI scores across different groups. RESULTS: The study sample's overall mean HUDBI score was 6.44±1.80 (Median 7). Dental students/interns (825.60) demonstrated a significantly higher HUDBI mean score than medical students/interns (556.75) (p<0.001). Similarly, female students (712.25) than the male students (712.25 vs. 642, p=0.001), and those studying in private universities compared to government universities (741.56 vs. 673.52, p=0.028) showed significantly higher HUDBI mean scores. CONCLUSIONS: During the COVID-19 pandemic, dental students/interns displayed a better oral health attitudes and behaviors than medical students/interns. Therefore, oral health promotion programs aimed at medical and dental students/interns are essential for improving oral health attitudes and behaviors.