Lingual Nerve Vulnerability — NDEB AFK MCQ

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ModerateBiomedical SciencesLingual Nerve VulnerabilityNDEB AFK

Which structure is most at risk during periosteal elevation on the lingual aspect of the mandibular premolar/molar region?

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Correct answer: B — Lingual nerve

The lingual nerve lies superficially on the lingual aspect of the mandibular body in the premolar-molar region, closely related to the periosteum. During periosteal elevation or lingual flap raising in this area, the lingual nerve is at risk of stretch, compression, or laceration injury. It is most superficial (and vulnerable) at the third molar region, lying only 2-3 mm below the alveolar crest.

Reference: Moore – Clinically Oriented Anatomy, 9th ed., 2019