Long buccal nerve

The long buccal nerve is a branch of the mandibular division of the trigeminal nerve which provides sensory innervation to the buccal gingiva and mucosa of the cheek and emerges deep to the mandibular ramus. In an anatomical variation, known as Turner's variation, the long buccal nerve branches off the inferior alveolar nerve within the mandible and arises from a foramen in the retromolar fossa. Surgical trauma of the Turner's variation may lead to paresthesia in the retromolar- canine buccal gingiva.