Anatomy & Histology · single question

Which developmental groove is confluent with the buccal groove of the mandibular second molar?

  1. Central groove
  2. Lingual groove
  3. Mesial groove
  4. Distal groove
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Correct answer: A. Central groove

The buccal groove of the mandibular second molar is confluent with the central groove. The central developmental groove is the main groove running mesiodistally across the occlusal surface, connecting to buccal and other grooves. This is important to know for sealant placement and occlusal anatomy identification.

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