| Right orbitale |
OrR |
The most inferior point of right infraorbital rim |
| Left orbitale |
OrL |
The most inferior point of left infraorbital rim |
| Right porion |
PoR |
The highest points of the right external acoustic meatus |
| Left porion |
PoL |
The highest points of the left external acoustic meatus |
| Average orbitale |
OrA |
Midpoint between the OrR and OrL. |
| Average porion |
PoA |
Midpoint between the PoR and PoL. |
| Right lateral semicircular canal |
LsR |
The most lateral point of the right lateral semicircular canal in the axial plane |
| Left lateral semicircular canal |
LsL |
The most lateral point of the left lateral semicircular canal in the axial plane |
| Nasion |
N |
The middle point of the frontonasal suture |
| Anterior nasal spine |
ANS |
The most anterior midpoint of the anterior nasal spine of the maxilla |
| Upper incisor |
UI |
Midoint between the crowns of the maxillary central incisors |
| Lower incisor |
LI |
Midpoint contact between the crowns of the mandibular central incisors. |
| Pogonion |
Pog |
The most anterior midpoint of the chin on the outline of the mandibular symphysis |
| Menton |
Me |
Menton is the most inferior midpoint of the chin on the outline of the mandibular symphysis. |
| Maxillary canine-left |
UL3 |
Cusp of the left maxillary canine |
| Maxillary canine-right |
UR3 |
Cusp of the right maxillary canine |
| Mandibular canine-left |
LL3 |
Cusp tip of the left mandibular canine |
| Mandibular canine- right |
LR3 |
Cusp tip of the right mandibular canine |
| First maxillary molar-left |
UL6 |
Mesio-buccal cusp of the left first maxillary molar |
| First maxillary molar-right |
UR6 |
Mesio-buccal cusp of the right first maxillary molar |
| First Mandibular molar-left |
LL6 |
Mesio-buccal cusp of the left first maxillary molar |
| First Mandibular molar- right |
LR6 |
Mesio-buccal cusp of the right first maxillary molar |
