Fig 6. For angles that theoretically exist in the sagittal plane (e.g. SNB), differences between 3D measurements and 2D measurements are relatively minor and clinically insignificant.
a. SNB was measured as 64.9° 3-dimensionally (in red in the online version), while the projection of SNB on the midsagittal plane is measured as 64° (in blue in the online version).
b. Point B is deviated to the left by 21.3 mm. (Color version of figure is available online.)