Retromolar Area Anatomy — NDEB AFK MCQ
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Correct answer: B — Lingual nerve as it passes close to the alveolar ridge surface
The lingual nerve passes close to the alveolar ridge surface in the retromolar/third molar region, typically 2-3 mm below the alveolar crest and directly medial to the lingual plate. This proximity makes it vulnerable during third molar surgery, especially when raising a lingual flap or using lingual elevation. The retromolar trigone is also an important area for detection of oral cancer (SCC).
Reference: Moore – Clinically Oriented Anatomy, 9th ed., 2019