Research Article

Analysis of Three-Dimensional Morphological Differences in the Mandible between Skeletal Class I and Class II with CBCT Fixed-Point Measurement Method

Table 2

The line distance and angle measurements to describe the morphological characteristics of the mandible.

Mandibular body

GoR-GoLMandibular body width
MfR-MfLWidth between mental foramen
Go-Ma (R/L)Width between gonion
Go-Me (R/L)Mandibular body length
Co-Gn (R/L)Effective mandible length
Ma-Ig (R/L)Alveolar process length
Ig-MenHeight of mandibular body
GoR-Me-GoLThe opening of mandibular body relative to Me
Co-Go-Me (R/L)Mandibular angle
Cc-Ma-Ig (R/L)Anterior angle of mandible

Ramus of mandible

SgR-SgLWidth between sigmoid notch
MaR-MaLWidth between the mandibular inflection points
Co-Go (R/L)Ramus height
CoR-Me-CoLThe opening of mandibular ramus relative to Me
Cc-Sg-Co (R/L)Coracoid-sigmoid notch-condylar angle
CoGo-Sag (R/L)Anteroposterior inclination of ramus
CoGo-Cor (R/L)Mesial and distal inclination of ramus

Condyle

CcR-CcLWidth between coracoid processes
CoR-CoLWidth between condylar
Co-Cc (R/L)Distance between condyle and coracoid
CdM-CdD (R/L)Condylar width
CdA-CdP (R/L)Condylar thickness
Co-Sg (R/L)Condylar height
CdMCdD-Sag (R/L)Anteroposterior inclination of condyle
CdMCdD-Cor (R/L)Mesial and distal inclination of condyle