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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
  1. a “°” represents the unit of angle measurement “degree”.