Fig. 3From: Three-dimensional oropharyngeal airway changes after facemask therapy using low-dose computed tomography: a clinical trial with a retrospectively collected control groupCT image slices of the orientation landmarks: Coronal CT image showing the right orbital OrR and left orbital OrL (a). Sagittal view showing right Porion PoR (b). Axial view showing anterior nasal spine ANS and posterior nasal spin PNS (c)Back to article page