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Table 2 Definition of the measurements used in this study

From: The three-dimensional morphology of mandible and glenoid fossa as contributing factors to menton deviation in facial asymmetry—retrospective study

Measurements

Definition

Mandibular condyle

 Mediolateral dimension (mm)

Cdmed to Cdlat

 Anteroposterior dimension (mm)

Cdant to Cdpost

 Neck length (mm)

Cdsup to S

 Mediolateral condylar position (mm)

Cdmed to MSR plane

 Condylar angle to FH (°)

(Cdmed - Cdlat) to FH plane

 Condylar angle to PO (°)

(Cdmed - Cdlat) to PO plane

 Condylar angle to MSR (°)

(Cdmed - Cdlat) to MSR plane

 Neck volume (mm3)

The volume of condylar neck above S

 Head volume (mm3)

The volume of condylar head above most constriction point of condylar neck

Glenoid fossa

 Vertical position of RG to FH (mm)

RG to FH plane

 Vertical position of AE to FH (mm)

AE to FH plane

 Depth of glenoid fossa (mm)

AE to RG parallel to MSR plane

 Sagittal position of RG to PO (mm)

RG to PO plane

 Sagittal position of AE to PO (mm)

AE to PO plane

 Anterior angle of GF to FH (°)

(RG-AE) to FH plane

Mandible

 Ramus length (mm)

Cdsup - Goinf

 Frontal ramal inclination (°)

(Cdlat - Golat) to MSR plane

 Lateral ramal inclination (°)

(Cdpost - Gopost) to FH plane

 Body length (mm)

Gopost - Me

 Body height (mm)

Canine cusp tip to Mandibular plane

  1. FH Frankfort horizontal plane, PO anteroposterior reference plane, MSR midsagittal reference plane, RG roof of glenoid fossa, AE articular eminence, GF glenoid fossa, Cdmed condylion mediais, Cdlat condylion lateralis, Cdant condylion anterius, Cdpost condylion posterius, Cdsup condylion superius, S sigmoid notch, Goinf gonion inferius, Golat gonion lateralis, Gopost gonion posterius, Me menton