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Table 2 Definition of measurements

From: Quantification of skeletal asymmetries in normal adolescents: cone-beam computed tomography analysis

  Variable Definition
Dental A-P molar differential (mm) The difference of Mx6 (z) and Md6 (z)
Midline differential (mm) The absolute difference of Mx1 (x) and Md1 (x)
Overbite (mm) Mx1 (y) minus Md1 (y)
Overjet (mm) Mx1 (z) minus Md1 (z)
Maxillary arch length (mm) Distance (x, y, z) between Mx6 and Mx1
Mandibular arch length (mm) Distance (x, y, z) between Md6 and Mx1
Midface Palatal plane to the sagittal plane (o) Angulation (x, z) between ANS-PNS and the sagittal plane
Mandibular Mandibular length in 3D (mm) Distance (x, y, z) between CdS and Pg
Mandibular length in 2D (mm) Distance (y, z) between CdS and Pg
Ramus height in 3D (mm) Distance (x, y, z) between CdS and Go
Ramus height in 2D (mm) Distance (y, z) between CdS and Go
Corpus length in 3D (mm) Distance (x, y, z) between Go and Pg
Corpus length in 2D (mm) Distance (y, z) between Go and Pg
Gonial angle (o) Angulation (y, z) between CdS, Go, and Pg
Mandibular plane angle (o) Angulation (y, z) between Go-Pg and the Frankfort horizontal
Ramus inclination to the sagittal plane (o) Angulation (x, y) between CdL-Go and the sagittal plane
Dental and chin inclination (o) Angulation (x, y) between Md1-Me and the sagittal plane
Condylar Mediolateral diameter of condylar head in 3D (mm) Distance (x, y, z) between CdL and CdM
Mediolateral diameter of condylar head in 2D (mm) Distance (x, y) between CdL and CdM
Anteroposterior diameter of condylar head in 3D (mm) Distance (x, y, z) between CdA and CdP
Anteroposterior diameter of condylar head in 2D (mm) Distance (y, z) between CdA and CdP
Superior joint space in 3D (mm) Distance (x, y, z) between CdS and GlS
Superior joint space in 2D (mm) Distance (x, y) between CdS and GlS
Condylar head inclination to the coronal plane (o) Angulation (x, z) between CdL-CdM and the coronal plane
Condylar head inclination to the axial plane (o) Angulation (x, y) between CdL-CdM and the axial plane