This study protocol outlines a plan to investigate musculoskeletal disorders (MSDs) in dental professionals using a nationwide survey and biomechanical analysis. It aims to identify the prevalence of MSDs and assess ergonomic risks associated with different dental treatment concepts and specializations, with the goal of informing preventive strategies.

The authors acknowledge support from J. Morita Europe GmbH, XO Care, and Ultradent GmbH&CoKG, which could potentially introduce bias. However, the nature and extent of this support aren't detailed, making it difficult to fully assess the potential influence.

This is a well-designed study protocol with a comprehensive approach to investigating MSDs in dental professionals. It combines a large-scale survey with objective movement analysis using inertial sensors and a standardized assessment tool (RULA). The inclusion of different dental specializations and treatment concepts is a significant strength. Although the limitations regarding the laboratory setting and use of a dummy head are acknowledged, the overall methodology is strong and has the potential to generate valuable insights into ergonomic risks in dentistry. The potential COI from industry support slightly lowers the rating, but not significantly as the impact cannot be fully ascertained..