Restorative & Materials · single question
Which tooth surface is NOT a 'smooth surface' for caries classification?
Show answer and explanation
Correct answer: B. Occlusal
The occlusal surface is a pit and fissure surface, NOT a smooth surface. Smooth surfaces include buccal, lingual, mesial, and distal.
- A. ❌ Lingual IS a smooth surface.
- B. ✅ CORRECT – Occlusal is a pit and fissure surface, not smooth.
- C. ❌ Buccal IS a smooth surface.
- D. ❌ Mesial IS a smooth (proximal) surface.
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