The anterior superior alveolar nerve. The anterior
superior alveolar nerve comes from the infraorbital nerve at
variable distances from the infraorbital foramen. The nerve
arises from the middle and anterior thirds of the infraorbital
nerve and courses in the infraorbital canal. After entering the
anterior face of the maxilla, it courses across the maxilla
towards the canine fossa before branching and forming the
superior dental plexus located in the maxillary alveolar
process (Fig. 5). The anterior superior alveolar nerve was
present as a single trunk in 75%, of cases as reported by
McDaniel