Table 1 Cephalometric measurements
Variable | Definition |
|---|---|
SNA | Angle from sella to nasion to A point |
SNB | Angle from sella to nasion to B point |
ANB | Angle from A point to nasion to B point |
SPL (soft palate length) | Distance from PNS to tip of the soft palate |
SPW (soft palate width) | Widest width along perpendicular line to PNS to tip of soft palate |
RPS (retropalatal space) | Shortest distance from soft palate to posterior pharyngeal wall |
RLS (retrolingual space) | Shortest distance from tongue base to posterior pharyngeal wall |
MPH | Linear distance along the perpendicular plane from Hyoid to mandibular plane |