Investigation of musculoskeletal disorders prevalence and the correlation of Visual Analog Scale with McGill Pain Questionnaire in dental students of Tehran universities

Abstract

Introduction: Work-related musculoskeletal disorders are one of the most common occupational complaints among dentists. This study aims to investigate the prevalence of musculoskeletal disorders and evaluate the correlation of the Visual Analogue Scale with the different dimensions of the McGill Pain Questionnaire in dental students in Tehran. Understanding this correlation leads to improved pain control by increasing the effectiveness of pain assessment.
 Materials and Methods: This cross-sectional descriptive-correlation study was conducted among 120 dental students in Tehran in 2020-2021. Data related to musculoskeletal disorders were collected through a Nordic questionnaire. Pain assessment was done using the Visual Analogue Scale and McGill Pain Questionnaire. The data were analyzed using SPSS version 26 software and chi-square, Spearman, and Pearson correlation tests to check the relationship between the two scales.
 Results: In this study, the highest prevalence of disorders was observed in the neck area (42.5%), upper back (35%), and waist (31.7%). Discomfort and pain in the neck in the last 12 months caused a decrease in work activity among the participants more than any other area. A significant correlation was observed between the visual pain scale and the sensory, affective, and evaluative pain perception group of the McGill Pain Questionnaire.
 Conclusion: The present study shows that work-related musculoskeletal disorders are common in dental students. It is recommended that corrective and educational measures using ergonomic science be on the agenda.