Analysis of the Columellar-Labial Angle in Perioral Aging.

Background: The young face presents a convex and rounded aspect; with aging, this changes to a more concave and flattened aspect, with the angles of the face undergoing changes through soft tissue repositioning and bone remodeling. The columellar-labial angle is one of the features that change.

Objectives: The objective of the present study was to analyze the columellar-labial angle at different stages of adult life and assess its contribution to facial changes during aging.