Methods: In this descriptive study, a new questionnaire, requirement, and lesson plan for oral lesions were designed using previous lesson plans and opinions of the department members of staff. The new and previous questionnaires were assessed by 60 senior dental students in this school. The comments were classified using a 5-scaled Likert measure and statistically analyzed by nonparametric Wilcoxon signed ranks tests.
Results: 98.4% of the students believed in the comprehension of the new questionnaire in the diagnosis of oral lesions, 91.7% considered the new measure as a complete guide to lead the students to the lesions' diagnosis, and 93.3% suggested the use of the new questionnaire for the patients with oral lesions along with the previous one.
Conclusions: It seemed that the use of new questionnaire in addition to the previous one was potentially useful to improve student's clinical performance and knowledge regarding oral lesions' diagnosis.