Which Premolar develops from five lobes?

  # Which of the following premolars develop from five lobes?
A. Maxillary first premolar
B. Maxillary second premolar
C. Mandibular first premolar
D. Mandibular second premolar

The correct answer is D. Mandibular second premolar.

The mandibular first premolars are developed from four lobes, as were the maxillary premolars. The mandibular second premolars are, in most instances, developed from five lobes, three buccal and two lingual lobes.

Reference: Wheeler's, 10th Edition, Page 151

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