Restorative & Materials · single question
What clinical finding is associated with abfraction?
Show answer and explanation
Correct answer: B. Sharp, wedge-shaped notches at the CEJ
Abfraction produces sharp, angular, wedge-shaped (V-shaped) notches at the CEJ on buccal surfaces. Caused by occlusal stress/flexure concentrating force at the cervical fulcrum point. Abrasion causes rounded/saucer-shaped lesions. Erosion (chemical) causes smooth, cupped, glazed surfaces. Abfraction is often seen with bruxism and parafunctional habits.
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