The enamel of the posterior teeth is thickest at____________?
Correct answer: D. Occlusal surface
- A. Cervical third of buccal surface
- B. Middle third of buccal surface
- C. Middle third of lingual surface
- D. Occlusal surface
Explanation
Enamel is thickest over the occlusal surface, particularly around cusp regions, because these areas bear the greatest masticatory forces. It gradually becomes thinner toward the cervical margin.
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