|
Vertical proportion: the three facial sections must have the same length
|
Tr-N
|
1° Third facial height
|
55 mm
|
|
N-Sn
|
Anterior upper facial 2° third height
|
51 mm
|
|
Sn-Me
|
Anterior upper facial 3° third height
|
59 mm
|
|
Naso-aural proportion: the distances N-Sn and Sa-Sba must have the same value
|
N-Sn
|
Anterior upper facial 2° third height
|
51 mm
|
|
Sa-Sba
| |
50 mm
|
|
Horizontal proportion: the eye distance must be equal to the ocular width
|
Ex_r-En_r
|
Eye r
|
30 mm
|
|
Ex_l-En_l
|
Eye l
|
29 mm
|
|
En_r-En_l
|
Eye distance
|
29 mm
|
|
Orbito-nasal proportion: the eye distance width must be equal to the nasal width
|
En_r-En_l
|
Eye distance
|
29 mm
|
|
Ac_r-Ac_l
|
Nasal width
|
33 mm
|
|
Nose-mouth proportion: nasal width should be two-thirds of the oral length
|
Ch_r-Ch_l
|
Oral length
|
48 mm
|
|
1.5 × (Ac_r-Ac_l)
|
1.5 × Nasal width
|
49.5 mm
|
|
Nose-face proportion: the nasal width must be a quarter of the facial width
|
0.25 × (Zy_r-Zy_l)
|
0.25 × Face width
|
27 mm
|
|
Ac_r-Ac_l
|
Nasal width
|
33 mm
|
|
Proportions of the lower third of the face (Pierodella Francesca) [38]
|
Sn-Sto
|
19.7=1/3 of Sn-Me (59 mm)
|
20 mm
|
|
Sto-Sl
|
19.7=1/3 of Sn-Me (59 mm)
|
16 mm
|
|
Sl-Me
|
19.7=1/3 of Sn-Me (59 mm)
|
23 mm
|
|
Proportions of the lower third of the face [38]
|
Sn-Sto
|
18.4 =31.2% of Sn-Me (59 mm)
|
20 mm
|
|
Sto-Sl
|
14.9 =25.2% of Sn-Me (59 mm)
|
16 mm
|
|
Sl-Me
|
25.7 =43.6% of Sn-Me (59 mm)
|
23 mm
|
|
Proportions of the lower third of the face (Durer) [38]
|
Sn-Sto
|
14.75 =25% of Sn-Me (59 mm)
|
20 mm
|
|
Sto-Sl
|
14.75 =25% of Sn-Me (59 mm)
|
16 mm
|
|
Sl-Pg
|
14.75 =25% of Sn-Me (59 mm)
|
14 mm
|
|
Pg-Me
|
14.75 =25% of Sn-Me (59 mm)
|
9 mm
|
|
Naso-aural inclination: the angle of the nose should be equal to the inclination of the ear
|
Angle of the nose
|
Nose inclination
|
65°
|
| |
Angle of the ear
|
Inclination of the ear
|
69°
|
