Information Retrieval Sources and Skill, and Knowledge of Evidence-based Dentistry Among Iranian Dental Students

Abstract Background: This study aimed to determine the common scientific information sources used, information retrieval skills, and knowledge of evidence-based dentistry (EBD) among graduating dental students in two dental schools in Iran.Methods: In total, 179 final-year dental students from Mashhad University (71%) and Babol University (29%) participated in this anonymous survey in 2019. A valid self-administered questionnaire has been translated using forward-backward method to assess students' use of information sources for the past six months, their information retrieval skills, and knowledge of EBD. We used chi-square test, t-test, and one way ANOVA for statistical analysis.Results: Most commonly used information sources by the students in the university and at home were: personal lecture notes, fellow dental students, and Compact Dentistry References (CDR) books. Proportion of students with good knowledge of EBD was 53.6%. Dental students who sensed to possess weaker information retrieval skills revealed lower EBD scores (p=0.01). Students who used at least one evidence-based information source (Cochrane, PubMed/Medline, scientific journals’ websites) more frequently sensed to possess better information retrieval skills (p=0.02).Conclusions: Commonly used information sources by the dental students were not evidence-based. Those students with better information retrieval skill showed higher EBD knowledge score and used evidence-based information sources more frequently. Therefore, more efforts should be put to basic skill of information retrieval and EBD in Iranian dental curricula.