Table 1 Cephalometric indicators used in this study
Abbr. | Scale | Name | Definitions |
|---|---|---|---|
Crania and Maxilla variables | |||
 N-ANS | mm | Upper Facial Height | Vertical linear distance from the Nasion to Anterior Nasal Spine |
 S-N | mm | Extent of Anterior Cranial Base | Linear distance from the Sella to Nasion |
 Ptm-A | mm | Mandibular base length | Distance between pedals of perpendiculars of Go and Po to the Palatal Plane |
 SNA | deg | Sella-Nasion-A point Angle | A point angulation to Sella-Nasion |
 NA-FH | deg | Horizontal position of the maxilla relative to the cranial base | Angulation between the Sella-Nasion plane and the Frankfort Plane |
 PP-FH | deg | Palatal Plane to Frankfort Plane Angle | Angulation between Palatal Plane to the Frankfort Plane |
Mandible variables | |||
 Go-Po | mm | Extent of Mandibular Plane | Distance between pedals of perpendiculars of Go and Po to the MP |
 Go-Co | mm | Extent of Mandibular Ramus | Distance between pedals of perpendiculars of Go and Co to the Ramal Plane |
 S-Go | mm | Posterior Facial Height | Vertical linear distance from the Sella to Gonion |
 SN-OP | deg | Sella-Nasion Plane to Occlusal Plane Angle | Angulation between the Sella-Nasion plane and the Occlusal Plane |
Classification and Outcome Indicators | |||
 S-Go/N-Me | % | P-A Face Height | Ratio of the vertical linear distance of Sella- Gonion to the vertical linear distance of Nasion-Menton |
 NPo-FH | deg | Facial Angle | Angulation between Nasion- Pogonion and the Frankfort Plane |
 SNB | deg | Sella-Nasion-B point Angle | B point angulation to Sella-Nasion |
 ANB | deg | A point-Nasion-B point Angle | Angulation formed by A point, Nasion, and B point |
 FH-MP | deg | FMA (Frankfort Mandibular-Plane Angle) | Angulation between Frankfort Plane and the Mandibular Plane |
 SN-MP | deg | SN Plane to Mandibular Plane Angle | Angulation between the Sella-Nasion plane and the Mandibular Plane |