Lateral Perspective of the Nerves of the Upper Teeth of a Transparent Male

Description

Viewed from the lateral aspect in a semi-transparent adult male head, the maxilla is rendered to reveal the superior alveolar neurovascular pathways supplying the upper dentition. Anterior, middle, and posterior superior alveolar nerves branch from the maxillary nerve (V2) in the infraorbital canal and posterior maxilla, then course inferiorly within the maxillary bone to interconnect as the superior dental plexus along the alveolar process. Fine terminal branches enter the apices of the incisors, canine, premolars, and molars, with their trajectories shown deep to the gingival margin and immediately superior to the tooth roots. Spatially, the plexus sits lateral to the nasal cavity and inferior to the orbit, with the infraorbital nerve continuing anteriorly toward the infraorbital foramen. Lateral visualization of this plexus matters when you need to explain why maxillary tooth pain can be diffuse and why anesthesia sometimes fails when accessory branches bypass a single injection site. Posterior superior alveolar nerve injury is a known risk during maxillary third molar extraction and sinus floor elevation, and an inflamed maxillary sinus can refer pain to the posterior teeth because of the intimate relationship between the sinus wall and the molar root apices. Short sentence. The illustration also supports teaching the spread of odontogenic infection from the maxillary alveolar process toward the canine fossa or maxillary sinus. Use this artwork in dental anatomy and head and neck neuroanatomy curricula, in oral and maxillofacial surgery texts discussing PSA/MSA/ASA blocks, and in patient-facing materials that clarify the anatomic basis of referred maxillary pain and post-extraction paresthesia. Anatomical accuracy verified by SciePro's Medical Advisory Board.