Which surface change is a sign of occlusal trauma?

• A. Wear facets
• B. Calculus buildup
• C. Occlusal polishing
• D. Pulpitis

Answer: (A)

Wear facets reflect chronic contact between teeth, caused by excessive or abnormal biting forces. When teeth repeatedly rub against each other due to grinding or clenching, the enamel wears away at the points of contact, creating smooth, polished facets on the occlusal surfaces. This surface change is a classic sign of traumatic or occlusal overload. In contrast, calculus buildup is mineralized plaque from improper cleaning, occlusal polishing is a clinical smoothing procedure (not a natural surface change), and pulpitis is inflammation of the tooth pulp—neither of which are surface signs of occlusal trauma.