| V |
Volume |
The volume of each region of the airway |
| mCSA |
Mean cross-sectional area |
Mean cross-sectional area of each region of airway |
| LR |
Left-right diameter |
The lateral dimension of each region of airway on CBCT axial plane |
| AP |
Anteroposterior dimension |
The anteroposterior dimension of each region of airway on CBCT axial plane |
| AP/LR |
Ratio of AP/LR |
Ratio of AP to LR dimensions |
| C3-H |
The third cervical vertebra to hyoid bone |
The distance from C3 to H in the sagittal plane |
| C3Me-H |
The C3-Me line to hyoid bone |
The perpendicular distance between H and C3-Me line |
| Gn-x |
The mandible advancement in the horizontal direction |
The mean amount of mandible advancement at Gn in the horizontal direction |
| Gn-y |
The mandible advancement in the vertical direction |
The mean amount of mandible advancement at Gn in the vertical direction |
| A-x |
The maxillary advancement in the horizontal direction |
The mean amount of maxillary bone advancement at A in the horizontal direction |
| A-y |
The maxillary advancement in the vertical direction |
The mean amount of maxillary bone advancement at A in the vertical direction |
| UI-x |
The upper incisor advancement in the horizontal direction |
The mean amount of upper incisor advancement in the horizontal direction |
| UI-y |
The upper incisor advancement in the vertical direction |
The mean amount of upper incisor in the vertical direction |
| U3-U3 |
The width of maxillary anterior arch |
The distance of upper canine cusp to canine cusp |
| UⅤ-UⅤ |
The width of maxillary middle arch |
The distance of both side second deciduous molar central fossa |
| U6-U6 |
The width of maxillary posterior arch |
The distance of both side first molar central fossa |
| AL |
The dental arch length |
The perpendicular distance from the mesial point of the two upper incisor to the line connecting left-right first molar central fossa |
