Objective: The objective of this study is to examine the perceivedsources and levels of stress reported by three different dental facultystudents from Turkey. This study also aims to compare stress sourcesamong these students with respect to the role of faculties, specificcurricula and institutional differences.Methods: In total, 1,294 students participated in a survey in2015. This survey used Modified Dental Environmental Stressquestionnaire comprising 47 items that were grouped into 6categories: academic performance; preclinical and clinical training;patient treatment; faculty administration and education staff;personal life issues; and professional identity after graduation.Responses were recorded on a four-point rating scale ranging fromnot stressful (1 point) to very stressful (4 points).Results: The response rate of the study was 63.3% (1,294/2,045).The “concern about failing the course or year due to the inability tofinish clinical schoolwork” (clinical score) was found as the higheststress item (mean score =3.57). More than one-third of questionnaireitems showed the presence of moderate-to-severe stress with meanscores between 3.57 and 3.06. The preclinical and clinical trainingcategory showed the highest mean stress score (3.09) than othercategories. In most of the stress items and six stress categories,females showed significantly more stress than males. A significantdifference was found among at least two or more faculties for eachstress category.Conclusion: The modification of curricula, establishment ofstudent counselling, assignment of student advisors and studentoriented programmes may be considered as stress reductionmethods. However, further studies are warranted to examine thesuccess of these methods.