Related Experiment Video
Updated: Mar 15, 2026

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
Published on: April 26, 2024
Sleep quality among dental students and its association with academic performance
Marwa I Elagra1, Mohammad R Rayyan1, Omaima A Alnemer1
1Department of Prosthodontics, Riyadh Colleges of Dentistry and Pharmacy Faculty of Dentistry, Riyadh, KSA.
Objective:
To investigate the sleep patterns of dental students from different academic levels and to determine the effect of sleep patterns on the academic performance of students.
Methods:
A self-reported questionnaire was designed and distributed among 1160 students from clinical and non-clinical levels to measure the sleep-related variables and academic performance. The questionnaire included questions on demographics, sleep habits, sleep quality index (PSQI), and grade point averages (GPAs). Data were analyzed with standard statistical software (SPSS, Statistical Package for the Social Sciences, version 22, Chicago, IL, USA).
Results:
The response rate was 62%. Sixty five percent of the students described their sleep as good or very good, whereas 35% described their sleep as bad or very bad. The mean number of hours of sleep per night for all students was 5.85 ± 1.853 hours. The GPA had a significant negative correlation with PSQI scores. The clinical group showed a stronger negative correlation (P = -0.351) than the nonclinical group (P = -0.134).
Conclusion:
It can be concluded that dental students tend to have poor sleep quality, which is unknown to them. Poor sleep quality was associated with lower academic performance, especially in clinical years.
More Related Videos
07:32Use of Galvanic Skin Responses, Salivary Biomarkers, and Self-reports to Assess Undergraduate Student Performance During a Laboratory Exam Activity
Published on: February 10, 2016
08:36Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
Published on: August 8, 2019
Related Concept Videos
Insufficient Sleep and Sleep Deprivation
Sleep deprivation is a more severe form of sleep loss...
Correlations
Social Loafing
Optimal Arousal Theory
Inverted U-Shaped Performance Curve
The...
Sleep Apnea
The condition is more prevalent among...
Sleep-Wake Cycles
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge: