Fig. 8From: Do the dimensions of the hard palate have a relationship with the volumes of the upper airways and maxillary sinuses? A CBCT studyVolumetric analysis of the maxillary sinuses. A ROI for segmentation of the maxillary sinuses. B Threshold selection for semi-automatic filling of the maxillary sinuses. C Filled maxillary sinus to obtain the volume in mm3. MS: maxillary sinus; R: right; L: leftBack to article page