Reducing the Risks for Musculoskeletal Disorders Utilizing Self-Assessment and Photography among Dentists and Dental Hygienists.

Purpose: Prolonged muscle strain and repetitive movements in the dental workforce may lead to work-related musculoskeletal disorders (WMSDs). The purpose of this study was to determine whether feedback involving photography and self-assessments would improve the postures and the accuracy of ergonomic self-assessment among practicing dentists and dental hygienists.Methods: convenience sample of dentists and dental hygienists was used for this randomized control design study (n=50). The Modified-Dental Operator Posture Assessment Instrument (M-DOPAI) was used for ergonomic evaluations of the randomly assigned control and experimental (training) groups over a four-week period. All participants were photographed and completed a M-DOPAI without viewing the photographs or receiving feedback at baseline. Participants in the control group independently completed a M-DOPAI without any additional photographs or feedback during weeks two and three. The experimental group had additional photographs taken and completed a M-DOPAI along with the principal investigator. Mixed-design ANOVAs were used to evaluate improvements in ergonomic scores and the accuracy of ergonomic self-assessments.Results: The training group utilizing photography resulted in improvements in ergonomic scores as compared to the control group. Improvements in the accuracy of ergonomic self-assessments was demonstrated among practicing dental hygienists. All participants strongly agreed that it was important to understand and properly apply ergonomics, and to develop accurate ergonomic self-assessment skills for clinical practice.Conclusions: Improving self-awareness for ergonomics through self-assessment can help reduce the risk of developing WMSDs among practicing dentists and dental hygienists.

Dental Hygiene Students' Self-Assessment of Ergonomics Utilizing Photography.

Due to postural demands, dental professionals are at high risk for developing work-related musculoskeletal disorders (WMSDs). Dental clinicians' lack of ergonomic awareness may impede the clinical application of recommendations to improve their posture. The aim of this study was to determine whether feedback involving photography and self-assessment would improve dental hygiene students' ergonomic scores and accuracy of their ergonomic self-assessments. The study involved a randomized control design and used a convenience sample of all 32 junior-year dental hygiene students enrolled in the autumn 2016 term in The Ohio State University baccalaureate dental hygiene program. Sixteen students were randomly assigned to each of two groups (control and training). At weeks one and four, all participants were photographed and completed ergonomic self-evaluations using the Modified-Dental Operator Posture Assessment Instrument (M-DOPAI). During weeks two and three, participants in the training group were photographed again and used those photographs to complete ergonomic self-assessments. All participants' pre-training and post-training photographs were given ergonomic scores by three raters. Students' self-assessments in the control group and faculty evaluations of the training group showed significant improvement in scores over time (F(1,60)=4.25, p<0.05). In addition, the accuracy of self-assessment significantly improved for students in the training group (F(1,30)=8.29, p<0.01). In this study, dental hygiene students' self-assessments using photographs resulted in improvements in their ergonomic scores and increased accuracy of their ergonomic self-assessments. Any improvement in ergonomic score or awareness can help reduce the risks for WMSDs, especially among dental clinicians.