Figure 1.
A cone-beam computed tomography, sagittal cut at the level of the pterygopalatine fossa illustrating the method of measuring for the greater palatine canal-pterygopalatine fossa component: (1) the length (36.9 mm) and path which is in this case straight (descending yellow line), (2) the lower limit and opening corresponding to the greater palatine foramen (5.2 mm in anteroposterior direction), and (3) the upper limit and opening (8.7 mm) as considered by our study (the higher radiologic bony aspect of the pterygopalatine fossa).