Figure 2.

Extremes of effective sagittal TMJ eminence shape among (A) participants without TMJ disc displacement (n = 17) and (B) those with TMJ disc displacement (n = 17), where vertical dimension of the eminence (mm) is plotted on the vertical axis vs. postero-anterior position (mm, positions #1-11) on the horizontal axis. The horizontal axis is parallel to the occlusal plane. Position #1 (0 mm, 0 mm) was defined as the point on the effective eminence opposite the centered supero-anteromost point on the condyle when the teeth were in maximum intercuspal position. For each diagnostic group, the participant with the steepest eminence was identified by ♦, while the participant with the flattest eminence was identified by □.