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Vaziri M H, Feyzi V, Sobhanian M, Vaziri F, Roostayi M M, Ahangari Z et al . Studying the Effects of Ergonomic Interventions on Cervical and Lumbar Spine Pain in Dentists. Iranian Rehabilitation Journal 2025; 23 (3) :287-296
URL: http://irj.uswr.ac.ir/article-1-2175-en.html

Objectives: Dentists are exposed to musculoskeletal disorders (MSDs) due to the nature of their work, which can impact their ability to provide effective patient care. This study aimed to investigate the effects of ergonomic interventions on reducing cervical and lumbar spine among dentists.
Methods: This interventional study was conducted in 2022 among dentists at educational clinics of the universities of medical sciences in Tehran City, Iran. Data were collected using demographic questionnaires, Neck disability index, the Oswestry disability index, and the visual analog scale (VAS). Comprehensive educational content, including training in ergonomic principles, sports, and behavioral health, was used. Data were analyzed using SPSS software, version 22 at two levels: Descriptive and analytical statistics.
Results: The research participants were 81 dentistry students with an average working experience of 3.14±1.58 years (Mean±SD). Among the participants, 32(39.5%) were male and 49(60.5%) were female. The results of the paired t-test showed that the interventions (education and exercise) were significantly effective, such that the amount of neck pain, as measured by the neck disability index level, decreased by 4.44, and in the VAS level decreased by 16.17 (P<0.001). Similarly, the reduction in waist pain for the disability index was 4.98, and for VAS, it was 8.76 (P<0.001).
Discussion: Based on the results of this study, ergonomic interventions (educational and exercise) can improve working conditions, prevent disorders, and reduce neck and back pain in dentists. Therefore, it is necessary to implement preventive measures, such as ergonomic interventions and ongoing training, to minimize MSDs among dentists.