Search Results (2)

Objectives: A dentist may assume incorrect working positions throughout their professional career, which can lead to musculoskeletal disorders (MSDs). This study aimed to quantify the prevalence of self-reported MSDs in dentists and the body region most affected, as well as to evaluate the most frequent working position, the area of work and the age group most frequently associated with MSDs. Methods: This is a cross-sectional observational study adhering to the STROBE and CHERRIES guidelines, approved by the local Ethics Committee. An online questionnaire (including the Nordic Musculoskeletal Symptoms Questionnaire) was applied to a convenience sample of Portuguese and Italian dentists. Data analysis was conducted with non-parametric comparisons (IBM© SPSS^® Statistics vs. 28.0, p < 0.05). Results: A total of 341 dentists (170 Portuguese, 171 Italian) aged 18–75 years participated. The prevalence of self-reported MSDs in Portugal and Italy was 78.8% and 81.9%, respectively. The most affected self-reported MSD body regions were the neck (65.3% Portuguese and 61.4% Italian dentists), shoulder (49.4% Portuguese and 39.2% Italian) and lumbar region (52.4% and 39.2%, respectively). The neck region was the one reported to cause the highest work absenteeism. The higher age group (41–50 years and higher) has a higher risk for self-reported MSD. Multivariate analysis highlighted increased practice time as a significant risk factor for MSDs in the previous year in both countries. Age group, practice duration and work position relative to the patient were significantly linked to MSD occurrence and work avoidance. Conclusions: Dentists showed a high prevalence of self-reported MSD despite performing clinical activity mostly seated. It was concluded that dentists older than 40 years and those who have been working for more than 20 years have a higher risk of MSD, and that endodontics is the area where they report feeling more discomfort. Dentists should be encouraged to take more breaks between appointments and regular exercise to prevent the development/progression of MSDs. Full article

Background: Dentists, including endodontists, frequently experience musculoskeletal disorders due to unfavourable working postures. Several measures are known to reduce the ergonomic risk; however, there are still gaps in the research, particularly in relation to dental work in the different oral regions (Quadrants 1–4). Methods: In this study (of a pilot character), a total of 15 dentists (8 male and 7 female) specialising in endodontics were measured while performing root canal treatments on a phantom head. These measurements took place in a laboratory setting using an inertial motion capture system. A slightly modified Rapid Upper Limb Assessment (RULA) coding system was employed for the analysis of kinematic data. The significance level was set at p = 0.05. Results: The ergonomic risk for the entire body was higher in the fourth quadrant than in the first quadrant for 80% of the endodontists and higher than in the second quadrant for 87%. For 87% of the endodontists, the ergonomic risk for the right side of the body was significantly higher in the fourth quadrant compared to the first and second quadrant. The right arm was stressed more in the lower jaw than in the upper jaw, and the neck also showed a greater ergonomic risk in the fourth quadrant compared to the first quadrant. Conclusion: In summary, both the total RULA score and scores for the right- and lefthand sides of the body ranged between 5 and 6 out of a possible 7 points. Considering this considerable burden, heightened attention, especially to the fourth quadrant with a significantly higher ergonomic risk compared to Quadrants 1 and 2, may be warranted. Full article