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Buccal nerve block (long buccal nerve block) is indicated for procedures involving the mucosa adjacent to the posterior molar teeth, such as the placement of a rubber dam clamp. The injection site is distal and buccal to the third molar, with the needle penetrating 1-2mm as the nerve lies directly below the mucosa. [5]
The buccal branches of the facial nerve (infraorbital branches), are of larger size than the rest of the branches, pass horizontally forward to be distributed below the orbit and around the mouth. Branches
The inferior alveolar nerve to anaesthetise all of the teeth in the mandibular arch; The long buccal nerve which supplies the soft tissue buccally to the mandibular molars; The lingual nerve which anaesthetising stops sensation to the lingual aspect of the gingiva, floor of the mouth and the tongue to the midline on that particular side
Any lesion affecting the individual branches (temporal, zygomatic, buccal, mandibular and cervical) is known as a lower motor neuron lesion. Branches of the facial nerve leaving the facial motor nucleus (FMN) for the muscles do so via both left and right posterior (dorsal) and anterior (ventral) routes.
Along their course, there may be connections with the buccal branches of the facial nerve. [2] They join with filaments from the lacrimal nerve and the zygomaticofacial nerve from the maxillary nerve (CN V 2). [3] They also join with the inferior palpebral nerve and the superior labial nerve, both from the infraorbital nerve. [3]
Abducens nerve; Accessory nerve; Accessory obturator nerve; Alderman's nerve; Anococcygeal nerve; Ansa cervicalis; Anterior interosseous nerve; Anterior superior alveolar nerve; Auerbach's plexus; Auriculotemporal nerve; Axillary nerve; Brachial plexus; Buccal branch of the facial nerve; Buccal nerve; Cardiac plexus; Cavernous nerves; Cavernous ...
The gingiva on the facial aspect of the mandibular incisors and canines is innervated by the mental nerve, the continuation of the inferior alveolar nerve emerging from the mental foramen. The gingiva of the buccal (cheek) aspect of the mandibular molar teeth is innervated by the buccal nerve (long buccal nerve). [7]
Several nondental nerves are usually anesthetized during an inferior alveolar block. The mental nerve, which supplies cutaneous innervation to the anterior lip and chin, is a distal branch of the inferior alveolar nerve. When the inferior alveolar nerve is blocked, the mental nerve is blocked also, resulting in a numb lip and chin.