Anatomy & Histology · single question
Which nerve provides primary sensory innervation to mandibular posterior teeth?
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Correct answer: C. Inferior alveolar nerve (IAN)
INFERIOR ALVEOLAR NERVE (IAN), branch of CN V3, provides sensory innervation to ALL mandibular teeth (dental branches), PDL, and gingiva (partially). Lingual nerve = lingual gingiva and floor of mouth. Long buccal nerve = buccal gingiva of mandibular molars. Mental nerve = terminal branch of IAN (lip/chin).
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