anterior superior alveolar nerve anterior superior alveolar nerve the anterior superior alveolar nerve (or anterior superior dental nerve), is a branch of the infraorbital nerve, itself a branch of the maxillary nerve (v2). it branches from the infraorbital nerve within the infraorbital canal before the infraorbital nerve exits through the infraorbital foramen. it descends in a canal in the anterior wall of the maxillary sinus, and divides into branches which supply the incisor and canine teeth. anterior superior alveolar nervedistribution of the maxillary and mandibular nerves, and the submaxillary ganglion.alveolar branches of superior maxillary nerve and sphenopalatine ganglion.detailsfrominfraorbital nerveinnervatesdental alveolusidentifierslatinrami alveolares superiores anteriores nervi maxillaris, ramus alveolaris superior anterioresta98a14.2.01.052ta26241fma52935anatomical terms of neuroanatomy it communicates with the middle superior alveolar nerve, and gives off a nasal branch, which passes through a minute canal in the lateral wall of the inferior meatus, and supplies the mucous membrane of the anterior part of the inferior meatus and the floor of the nasal cavity, communicating with the nasal branches from the sphenopalatine ganglion. dental considerations for this nerve are important. the anterior superior alveolar usually innervates all anterior teeth, loops backwards to join the middle superior alveolar nerve to form the superior dental plexus.