Table 3: Angular measurements and corresponding clinical standard values from literature.

Angular Measurements Clinical Standard
Holdaway’s harmony angle= N-Pog-Lab sup:
Angle between the soft tissue nasion, pogonion and the most prominent point of the upper lip: labiale superior.
10°
Lab sup-G-Pog:
Angle between the soft tissue labiale superior, glabella and pogonion.
6.3°
Lab inf-G-Pog:
Angle between the soft tissue labiale inferior, glabella and pogonion.
3.3°
G-N-Prn:
Angle between the soft tissue glabella, nasion and pronasale.
140.3°
Pog-Prn-N:
Angle between the soft tissue pogonion, pronasale and nasion.
129.5°
Prn-N-Sn:
Angle between the soft tissue pronasale, nasion and subnasale.
22.5°
Prn-N-Pog:
Angle between the soft tissue pronasale, nasion and pogonion
27.5°
(N-Prn)/(G-Pog):
Angle between the lines joining soft tissue nasion to pronasale and glabella to pogonion.
35°
(Sn-Lab sup)/(Pog-Lab inf):
Angle between the lines joining soft tissue subnasale to labiale superior and pogonion to labiale inferior.
157.3°