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Published on: February 2, 2020
Environmental Factors Increasing the Risk of Poor Posture in Dental Hygiene Students
Trisha M Willie1, Yiyang Fang1, Nancy A Baker2
1Chan Division of Occupational Science and Occupational Therapy, University of Southern California, Los Angeles, California, USA.
Dental hygiene students face high risks of musculoskeletal disorders due to environmental factors like working positions and instruments. Optimizing ergonomic training is crucial for protecting these future professionals.
Area of Science:
- Occupational health
- Ergonomics
- Dental hygiene education
Background:
- Dental hygiene students are susceptible to work-related musculoskeletal disorders (WMSDs) due to prolonged awkward postures.
- Environmental factors in clinical settings significantly influence the risk of developing WMSDs.
Purpose of the Study:
- To investigate the association between environmental factors and poor posture in dental hygiene students.
- To identify specific clinical environmental factors that predict higher risks of WMSDs.
Main Methods:
- A longitudinal cohort study involving 1487 video observations of dental hygiene students during scaling activities.
- Utilized the Rapid Upper Limb Assessment (RULA) to evaluate posture and identify risks.
- Employed descriptive analysis and exploratory prediction modeling.
Main Results:
- Dental hygiene students exhibited high-risk RULA scores (mean 4.8), indicating a significant risk for upper extremity MSDs.
- Scaling instrument type, patient clock positioning, and sitting vs. standing were significantly associated with poor posture (p < 0.001).
- The riskiest combination involved manual instruments, standing, and working at clock positions 7 and 8.
Conclusions:
- Environmental factors, particularly working positions, significantly contribute to poor posture and WMSDs in dental hygiene students.
- There is a critical need for optimized ergonomic training that addresses combined environmental factors.
- Protecting emerging dental professionals from long-term adverse health impacts is essential.
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