Fig. 6. Column graphs illustrating changes in glabellar angle, maxillary angle, orbital, and pyriform aperture angles, as well as pyriform and orbital widths. Glabellar (A) and maxillary (B) angles show a statistically sinificant decrease with aging in both sexes. Orbital (C) and pyriform (D) angles show a statistically significant decrease with aging in females only. Pyriform (E) and orbital (F) widths do not show statistically significant differences between the age groups.