Colour Vision and Shade Selection — NDEB AFK MCQ
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Correct answer: A — Approximately 8% of males and 0.5% of females have some form of colour vision deficiency that may affect shade selection accuracy
Approximately 8% of males and 0.5% of females have some degree of colour vision deficiency (most commonly red-green deficiency). This can significantly impact the accuracy of visual shade selection for dental restorations. Dental professionals should be aware of their colour vision status. Digital shade-matching devices (spectrophotometers, colorimeters) provide objective, reproducible shade measurements that compensate for individual colour perception variations and are increasingly used as adjuncts to visual shade selection.
Reference: Shillingburg – Fundamentals of Fixed Prosthodontics, 4th ed., 2012