Table 2 Variables measured from lateral cephalograms
From: Changes of occlusal plane inclination after orthodontic treatment in different dentoskeletal frames
Variable | Description |
|---|---|
Skeletal frame | |
SNA°a | Angle formed by the SN plane and the Nasion-A point plane |
SNB° | Angle formed by the SN plane and the Nasion-B point plane |
ANB° | Angle between Nasion-A point plane and the Nasion-B point plane |
MP-SN° | Angle formed by mandibular plane and SN plane |
Occlusal plane | |
BOP-SN° | Angle between the SN plane and BOP |
FOP-SN° | Angle between the SN plane and FOP |
MxOP-MnOP° | Angle between MxOP and MdOP |
Dental | |
Overbite (mm) | The vertical distance from U1 tip to L1 tip |
Overjet (mm) | The horizontal distance from U1 tip to L1 tip |
Maxillary dentoalveolar | |
U1-SN° | The posterior-inferior angle formed by the long axis of the U1 and the SN plane |
U1-PP (mm) | The perpendicular distance from the U1 tip to the palatal plane |
U6-PP (mm) | The perpendicular distance from the U6 occlusal surface to the palatal plane |
Mandibular dentoalveolar | |
L1-SN° | The angle formed by the long axis of the lower central incisor and the mandibular plane |
L1-MP° | The angle formed by the long axis of the lower central incisor and the mandibular plane |
L1-MP (mm) | The perpendicular distance from the L1 tip to the mandibular plane |
L6-MP (mm) | The perpendicular distance from the L6 occlusal surface to the mandibular plane |