Changes in spinal curve during dentistry studies measured with a Spinal Mouse device: A five-year prospective study

Area of Science:

• Ergonomics in Health Professions
• Spinal Biomechanics
• Dental Student Health

Background:

• Musculoskeletal disorders (MSDs) are prevalent among dental students, often affecting the spine.
• Previous research has not explored the link between spinal curve parameters and MSDs in this population.
• Dental study curricula may contribute to the development of spinal issues.

Purpose of the Study:

• To investigate changes in spinal curve parameters throughout dental studies.
• To analyze the relationship between objective spinal measurements and self-reported MSDs.
• To compare findings with existing literature on spinal parameters.

Main Methods:

• A longitudinal observational study involving 73 dental students over 5 years.
• Students completed questionnaires on MSDs and underwent spinal assessments using the Spinal Mouse® device.
• Data collection occurred at the beginning, middle, and end of the study period.

Main Results:

• Significant gender differences were observed in lumbar lordosis, sacral inclination, and thoracolumbar ratio.
• Spinal range of motion increased, while maximal left lateral inclination decreased during the study.
• Whole-spine backward inclination increased in women; forward sacral inclination decreased overall. No correlation found between objective findings and subjective MSD reports.

Conclusions:

• Spinal shape exhibits gender-specific variations and undergoes changes during dental education.
• No objective spinal parameters were identified as predictors for MSDs in dental students.
• These results establish a baseline for future research on MSDs and objective spinal findings in this demographic.