Fig. 6.

Landmarks identified in the axial palatal section in the post-expansion CBCT. 1 Right anterior nasal spine (Rt ANS), 2 left anterior nasal spine (Lt ANS), 3 right posterior nasal spine (Rt PNS), 4 left posterior nasal spine (Lt PNS), 5 most medial point of the lateral plate of the right pterygoid process (Rt Lat Pter), 6 most lateral point of the medial plate of the right pterygoid process (Rt Med Pter), 7 most lateral point of the medial plate of the left pterygoid process (Lt Med Pter), 8 most medial point of the lateral plate of the left pterygoid process (Lt Lat Pter)