Which of the following premolars has a mesial marginal ridge more cervical than the distal marginal ridge________________?
Correct answer: C. Mandibular 1st premolar
- A. Maxillary 1st premolar
- B. Maxillary 2ndpremolar
- C. Mandibular 1st premolar
- D. Mandibular 2nd premolar
Explanation
The mandibular first premolar has a mesial marginal ridge that slopes cervically and lies lower than the distal marginal ridge. This feature is associated with its prominent transverse ridge and mesiolingual developmental groove.
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