Healthcare professionals, including dental and medical students, as well as dentists and physicians, play an important role in promoting oral health in the community. Therefore, it is crucial to understand their awareness of periodontal health and their oral hygiene practices. This study sought to assess their knowledge of oral health and hygiene behaviors regarding gum health. A cross-sectional survey was conducted to investigate the self-reported oral hygiene practices and perceived periodontal health among dental students, dentists, medical students, and physicians in Ksa. An online questionnaire was distributed through social media platforms, which included five demographic-related items and 19 questions about oral hygiene and periodontal health. The chi-square tests were used to analyze the relationship between categorical variables. The study sample consisted of 637 individuals, with 154 dental students, 101 medical students, 276 dentists, and 106 physicians. Significant differences (P < 0.05) were observed among the groups regarding tooth brushing habits such as brushing frequency, method, duration, brush type, and strokes. In addition, differences were found in practices such as tongue cleaning, the use of inter-dental aids, and dental visits. The perception of periodontal diseases also showed significant differences between groups (P < 0.05). Dental students and dentists demonstrated superior oral hygiene practices, particularly in terms of brushing frequency and interdental cleaning. In contrast, medical students and physicians generally considered brushing to be sufficient to prevent gum problems, and many did not consider interdental cleaning to be necessary. Medical students and Physicians also had a heightened perception of severe gum problems.
