Which point is defined as the most anterior-inferior point on the symphysis of the chin?

The most anterior-inferior point on the symphysis of the chin is known as the pogonion. This specific anatomical landmark is critical in cephalometrics for assessing facial profile, growth patterns, and various orthodontic treatment planning scenarios.

The pogonion is defined as the point at the most forward projection of the chin, making it essential for determining the aesthetic balance of the lower third of the face. This point is crucial for evaluating facial symmetry, esthetic profiles, and occlusal relationships, which are all important in orthodontics and maxillofacial surgery.

In contrast, the gnathion represents the midpoint between the gnathion and menton, while the menton is simply the lowest point on the symphysis. The basion is a reference point on the base of the skull, unrelated to the chin's projection. Understanding these distinctions helps clinicians accurately assess and interpret craniofacial relationships.