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Objectives The prevalence of recurrent aphthous stomatitis (RAS) among the general population worldwide is 20%. This study aims to discover any correlations between RAS predisposing factors and the gender and year of study of undergraduate dental students at the Faculty of Dental Medicine at Airlangga University. Methods A cross-sectional analytical study using simple random sampling was performed. The respondents answered seven questions on a self-reported online questionnaire set up usingdoi:10.1055/s-0042-1748523 fatcat:tbs4gnrcqzbshmjnvyf446q24u