Background: Survey on oral health, associated with adequate primary preventive measures,is considered important part to promote oral self-care behaviour.Methods: Cross-sectional study ,using a self-administered questionnaire incorporating demographic data, self-care questions, and the Hiroshima University Dental Behavioural Inventory (HU-DBI). The survey was conducted from March to May during the 2024–2025 academic year and included all first- to fifth-year students, with 126 valid responses from a total enrolment of 229 students. HU-DBI scoring followed the standard 12-item method, with separate indices calculated for knowledge (K), attitude (A), and behaviour (P). Using suitable tests by the statistical package IBM SPSS Statistics for Windows version26.
Results showed a progressive increase in all indicators from first to fifth year: HU-DBI mean scores rose from 7.3 to 8.8; knowledge scores from 3.4 to 4.1; attitude scores from 1.9 to 2.3; and behaviour scores from 2.6 to 3.2. Higher academic years demonstrated greater adherence to recommended oral hygiene practices and higher awareness of preventive measures. The largest gains were seen in items related to proper brushing techniques and understanding the role of oral hygiene in disease prevention. Items involving delayed dental visits and gum disease prevention knowledge showed comparatively lower improvement, indicating targeted areas for future educational focus.
Conclusion:There is statistical differences between preclinic and clinic grades