Transparent Third Maxillary Molar, Lateral View

Description

Presented in lateral profile, the right maxillary third molar (M3) is isolated in blue within the posterior maxillary arch, with the second molar immediately mesial and the maxillary tuberosity distal to the crown. Semi-transparent rendering of the maxilla reveals the maxillary sinus (antrum of Highmore) superior to the molar roots, clarifying the close relationship between the sinus floor and the apices. Root morphology is shown with the common pattern of fused roots and a distal inclination of the radicular complex, while the crown contour remains aligned to the occlusal plane of the posterior dentition. That proximity to the maxillary sinus is the clinical story. Extractions of maxillary third molars can create an oroantral communication when thin bone overlies a root apex, and distally inclined or fused roots change the direction of elevator forces during removal. The lateral view also supports endodontic teaching, since maxillary third molars often present with variable canal anatomy that complicates access, working length determination, and obturation. Dental anatomy and oral surgery courses can use this image to explain posterior maxillary landmarks, eruption patterns, and the anatomic basis for sinus-related complications after third molar removal. It also fits well in patient-facing consent materials and in textbooks covering maxillary sinus floor elevation, odontogenic sinusitis, and radiographic interpretation of third molar root proximity on periapicals, panoramic images, or CBCT cross-sections. Anatomical accuracy verified by SciePro's Medical Advisory Board.