Fig. 3From: The effect of orthodontic vertical control on the changes in the upper airway size and tongue and hyoid position in adult patients with hyperdivergent skeletal class IIA Significant change metrics in the 2D direction of the upper airway. B Significant change metrics in the 3D direction of the upper airway. C Correlation between MP-SN change index and sagittal diameter L2 change index. D Correlation between S-Go/N-Me(%) change index and sagittal diameter L2 change indexBack to article page