Table 2 Definitions of 15 analyzed 3D distances and 6 angles
| Â | Abbreviation | Explanation |
|---|---|---|
3D distances | n-sn | nasal height |
en r -en l | intercanthal distance | |
(ex-en) r / l | eye width right / left | |
sbal r -sbal l | subalar width | |
sn-nt | nasal depth | |
(en-sbal) r / l | lateral height of the nose right / left | |
c’-sn | length of the columella | |
sn-ls | lengt of the upper lip | |
ch r -ch l | oral width | |
(en-ch) r / l | lateral height of the midface right / left | |
(nost_post - nost_ant) r / l | length of the nostril right / left | |
(nost_lat - nost_med) r / l | width of the nostril right / left | |
3D angles | n - nt - sn | nasal tip angle |
ls - sn - nt | subnasal angle | |
ls - sn - c’ | approximated nasolabial angle | |
sbal r - nt - sbal l | anterior angle of the nasal base triangle defined by the mentioned points | |
sbal r - sn - sbal l | anterior angle of the nasal base triangle defined by the mentioned points | |
en r - n - en l | anterior angle of the nasal root triangle defined by the mentioned points |