Table 2 Reference points, lines, and planes used in the morphometric analysis of condyle position

Reference points, lines, and planes

 Cs

The highest point of the condyle in the sagittal view

 GI

Point of greatest concavity of the glenoid fossa

 Cp

Most convex point on the posterior face of the condyle

 PI

Line perpendicular to the Frankfurt plane passing through the midpoint of the sagittal diameter of the external auditory canal

 Ca

Point on the anterior wall of the condyle closest to the posterior wall of the articular eminence

 EI

Point on the posterior wall of the articular eminence closest to the anterior wall of the condyle

 E-E′

Line tangential to the posterior wall of the articular eminence

 Fh′

Line parallel to the Frankfurt plane passing through the lower edge of the articular eminence

Distances^a

 Cs-GI

Upper distance from the highest part of the condyle to the deepest part of the glenoid fossa

 Cp-PI

Posterior distance from the most convex part of the posterior wall of the condyle to line PI

 Ca-EI

Anterior distance joining the most convex point on the anterior wall of the condyle with point EI

 E-E′.Fh′

Angle between the tangent passing through the posterior wall of the articular eminence and the Fh′ plane parallel to the Frankfurt plane

 GI-Fh

Height of the eminence from the deepest part of the glenoid fossa to the Fh′ plane parallel to the Frankfurt plane