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Table 1 Definition of 3D landmarks and measurement parameters

From: Evaluation of optimal single-photon emission computed tomography reference value and three-dimensional mandibular growth pattern in 54 Chinese unilateral condylar hyperplasia patients

Landmark Measurements

Definition

CoL

exact tip of left condyle

CoR

exact tip of right condyle

GoL

left midpoint of posterior border of mandibular angle

GoR

right midpoint of posterior border of mandibular angle

MFL

left foramina located on the anterior surface of the mandible

MFR

right foramina located on the anterior surface of the mandible

Gn

point located perpendicular on madibular symphysis midway between pogonion and menton

Co-Gn

anterior-posterior length of mandible

Co-Go

the ramus height of mandible

Go-Gn

the length of mandibular body

Go-MF

length of posterior half of mandibular body

MF-Gn

length of mesial half of mandibular body

  1. Abbreviations: CoL: left condylion, CoR: right condylion, GoL: left gonion, GoR: right gonion, MFL: left mental foramen, MFR: right mental foramen, Gn: gnathion