Title: What is forward facial growth and how to measure it? - My Posture and Orthodontics Blog
Headings: What is forward facial growth and how to measure it?
What is forward facial growth and how to measure it?
How to Measure Forward Growth?

Content: b) the facial plane line shows massive facial forward growth d) after correcting forward head posture by tilting the entire picture the new facial plane reveals his true growth
To avoid all of this, cosmetic surgeons use different methods of measurement. Instead of drawing imaginary lines they plot angles. This nullifies the head tilt issue and provides standardized numbers for objective assessment. One such measurement is called the Facial Convexity Angle. It works by measuring the relation between the most prominent points on the brow ridge (G), and on the upper and lower jaws (SN, PG). Connecting these points usually yields an angle in the range of 175° to 145°. The higher the degree the further forward the face is. Applying this to the two pictures below provides 174° for the first and 158° for the second. The first person has a forward face whereas the second one has a recessed face. Roughly speaking, faces that are 165° and above are considered forward, and faces under that are recessed.