Anatomy & Histology · single question
In dentistry, what is the most common ergonomic cause of musculoskeletal disease?
Show answer and explanation
Correct answer: C. Inappropriate operator working distance
- A. ❌ Inappropriate equipment contributes but is secondary to positioning/working distance.
- B. ❌ Failing to take breaks is a risk factor but not the primary ergonomic cause.
- C. ✅ Correct. The most common ergonomic cause is inappropriate OPERATOR WORKING DISTANCE — working too far from the patient with arms extended, neck bent, or spine twisted. This causes chronic strain of the back, neck, and shoulders.
- D. ❌ Poor lighting may cause neck strain but is not the main ergonomic risk.
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