Buccal Nerve Innervation — NDEB AFK MCQ
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Correct answer: D — Buccal mucosa and gingiva overlying the mandibular molars
The buccal nerve (long buccal nerve, buccinator nerve) is a branch of the anterior division of the mandibular nerve (V3). It provides sensory innervation to the buccal mucosa, buccal gingiva, and periosteum overlying the mandibular molars. It does NOT innervate the buccinator muscle (which is innervated by the facial nerve CN VII). The buccal nerve must be blocked separately when extracting mandibular molars, as the IAN block does not anaesthetise this area.
Reference: Moore – Clinically Oriented Anatomy, 9th ed., 2019