Table 2.
Definitions of angular and linear measurements used in this study
| Measurement | Definition |
|---|---|
| Ba-T-Vert T | Angle between basion, tuberculumsella, and vertical T line |
| Ar-T-Vert T | Angle between articulare, tuberculumsella, and vertical T line |
| SNA | The angle between the anterior cranial base and NA plane |
| SNB | The angle between the anterior cranial base and NB plane |
| ANB | SNA minus SNB |
| WITS | Distance between points A and B projected as perpendicular lines along the functional occlusal plane |
| A-Vert T | Distance between point A and vertical T line |
| Ptm-Vert T | Distance between pterygomaxillary fissure and vertical T line |
| Co-A | Distance between condylion and vertical T line |
| Pr-Vert T | Distance between pronasale and vertical T line |
| B-Vert T | Distance between point B and vertical T line |
| Id-Vert T | Distance between infradentale and vertical T line |
| Co-Gn | Distance between condylion and gnathion |
| Co-Go | Distance between condylion and gonion |
| Go-Gn | Distance between gonion and gnathion |
| Co-Vert T | Distance between condylion and vertical T line |
| ML-SBL | Angle between mandibular line and stable basicranial line |
| NL-SBL | Angle between nasal line and stable basicranial line |
| NL-ML | Angle between nasal line and mandibular line |
| Ar-GO-Me | Angle between articulare, gonion, and menton |
| ANS-Me | Distance between anterior nasal line and menton |
| UI-SN | Distance between upper incisor and vertical T line |
| IMPA | Incisor mandibular plane angle |
| CondAx-Vert T | Angle between condylar axis and vertical T line |
| CondAx-SBL | Angle between condylar axis and stable basicranial line |
| CondAX-ML | Angle between condylar axis and mandibular line |
| Ar-Go-Vert T | Angle between articulare, gonion and vertical T line |