Which point represents the lowest point on the inferior orbital margin?

The lowest point on the inferior orbital margin is known as the orbitale (Or). This anatomical landmark is significant in cephalometric analysis because it helps in assessing the position of the maxilla and the orientation of the facial skeleton in relation to other craniofacial landmarks.

The orbitale is specifically located at the lowest point of the orbital rim, marking the boundary between the face and the orbits. Its position can influence assessments related to aesthetic or functional considerations in orthodontics and maxillofacial surgery.

Understanding the anatomy of the orbitale is crucial for accurate cephalometric measurements, as it serves as a reference point for evaluating craniofacial relationships. Other points listed, such as the pterygoid maxillary fissure, glabella, and anterior nasal spine, represent different anatomical locations and do not serve as the lowest point of the inferior orbital margin, which is why they are not the correct answer in this context.