Canine Fossa On The Maxilla, Anterior View

Description

Canine fossae sit on the anterior (facial) surface of the maxilla, just inferior to the infraorbital margin and lateral to the piriform aperture of the nasal cavity. Each concavity lies superior to the alveolar process in the region of the canine root, with the canine eminence forming a subtle vertical ridge inferiorly and the infraorbital foramen positioned superolaterally as a key landmark for the infraorbital neurovascular bundle. Medially, the contour transitions toward the anterior nasal spine and the margins of the nasal aperture, while laterally it blends into the zygomatic process of the maxilla. Right and left sides are presented symmetrically from an anterior viewpoint. For surgical and dental anatomy, the canine fossa matters because it is a thin bony window over the maxillary sinus and a reference point for the classic canine fossa (Caldwell-Luc) approach to the anterior wall of the sinus, as well as for understanding pathways of odontogenic infection. Canine (infraorbital) space infections from maxillary canine apices can elevate the upper lip and track toward the infraorbital region, and the relationship of the fossa to the infraorbital foramen helps explain sensory patterns involving the infraorbital nerve (V2). Surface form drives function. The lighting and bony relief in this fixed anterior perspective make the shallow depression and surrounding buttresses readable without obscuring the adjacent landmarks. Use this illustration in dental gross anatomy and head and neck courses to orient students to the maxillary facial surface, or in oral and maxillofacial surgery teaching material when discussing sinus access, canine space abscess drainage, and infraorbital nerve block landmarks. It also suits atlases and publisher plates on the midface skeleton, facial buttresses, and maxillary sinus relations. Anatomical accuracy verified by SciePro's Medical Advisory Board.