Restorative & Materials · single question
Which best defines ABRASION of teeth?
Show answer and explanation
Correct answer: A. Wear from aggressive mechanical action (e.g., vigorous toothbrushing)
- A. Correct. Abrasion is pathologic wear from a foreign mechanical agent — classically over-vigorous brushing/abrasive paste, producing cervical notches.
- B. Incorrect. Acid dissolution is EROSION.
- C. Incorrect. Tooth-to-tooth wear is ATTRITION.
- D. Incorrect. Bacterial breakdown is caries, not abrasion.
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