Which line angle area is most acute when a permanent maxillary second molar is viewed occlusally ?
Correct answer: A. Mesiofacial
- A. Mesiofacial
- B. Distofacial
- C. Mesiolingual
- D. Distolingual
Explanation
The maxillary second molar has a rhomboidal occlusal outline, and its mesiofacial angle is the sharpest of the four corner angles. The distolingual angle may also be relatively acute, but is less sharply defined in this comparison.
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