Fig. 7.

Measurements on axial palatal section on post-expansion CBCT. Blue line, maxillary sagittal plane. a Patient with a complete disengagement of the pyramidal process from the pterygoid plates. b Patient with a partial disengagement of the pyramidal process from the pterygoid plates in the left pterygopalatine suture; the opening is present between the pyramidal process and the medial pterygoid plate