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Table 1 Cephalometric variables

From: Posterior teeth angulation in non-extraction and extraction treatment of anterior open-bite patients

Maxillomandibular relationship
 SNA (°) SN to NA angle
 SNB (°) SN to NB angle
 ANB (°) NA to NB angle
Growth pattern
 SN.PP (°) SN to palatal plane angle
 SN.GoGn (°) SN to Go–Gn angle
 PP.MP (°) Angle between palatal plane(ANS/PNS) and mandibular plane(Go/Gn)
 FMA (°) Frankfurt horizontal to mandibular plane angle
 Gonial angle (°) Ar–Go to Go–Gn angle
 LAFH (mm) Lower anterior face height: distance from ANS to menton
Dental relationship
 Overbite (mm) Distance between the maxillary and mandibular incisor borders.
Maxillary teeth mesio-distal angulations
 Mx4.BOP (°) Long axis (apex to tip) of maxillary 1st premolar to bisected occlusal plane (BOP)
 Mx5.BOP (°) Long axis (apex to tip) of maxillary 2nd premolar to bisected occlusal plane (BOP)
 Mx6.BOP (°) Long axis (furcation to center of the crown) of maxillary 1st molar to bisected occlusal plane (BOP)
 Mx7.BOP(°) Long axis (furcation to center of the crown) of maxillary 2nd molar to bisected occlusal plane (BOP)
 Mx4.PP (°) Long axis (apex to tip) of maxillary 1st premolar to palatal plane(ANS–PNS)
 Mx5.PP (°) Long axis (apex to tip) of maxillary 2nd premolar to palatal plane (ANS–PNS)
 Mx6.PP (°) Long axis (furcation to center of the crown) of maxillary 1st molar to palatal plane (ANS–PNS)
 Mx7.PP (°) Long axis (furcation to center of the crown) of maxillary 2nd molar to palatal plane (ANS–PNS)
Mandibular teeth mesio-distal angulations
 Md4.BOP (°) Long axis (apex to tip) of mandibular 1st premolar to bisected occlusal plane (BOP)
 Md5.BOP (°) Long axis (apex to tip) of mandibular 2nd premolar to bisected occlusal plane (BOP)
 Md6.BOP (°) Long axis (furcation to center of the crown) of mandibular 1st molar to bisected occlusal plane (BOP)
 Md7.BOP (°) Long axis (furcation to center of the crown) of mandibular 2nd molar to bisected occlusal plane(BOP)
 Md4.MP (°) Long axis (apex to tip) of mandibular 1st premolar to mandibular plane (Go–Gn)
 Md5.MP (°) Long axis (apex to tip) of mandibular 2nd premolar to mandibular plane (Go–Gn)
 Md6.MP (°) Long axis (furcation to center of the crown) of mandibular 1st molar to mandibular plane (Go–Gn)
 Md7.MP (°) Long axis (furcation to center of the crown) of mandibular 2nd molar to mandibular plane (Go–Gn)
Interdental angulations
 Mx4.Md4 (°) Long axis (apex to tip) of maxillary and mandibular 1st premolars
 Mx5.Md5 (°) Long axis (apex to tip) of maxillary and mandibular 2nd premolars
 Mx6.Md6 (°) Long axis (furcation to center of the crown) of maxillary and mandibular 1st molars
 Mx7.Md7 (°) Long axis (furcation to center of the crown) of maxillary and mandibular 2nd molars