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Fig. 7 | Progress in Orthodontics

Fig. 7

From: Tomographic assessment of palatal suture opening pattern and pterygopalatine suture disarticulation in the axial plane after midfacial skeletal expansion

Fig. 7

a Pre-expansion view on axial palatal section. b Post-expansion view on axial palatal section showing anatomical landmarks. 1: right anterior nasal spine (ANS), 2: left anterior nasal spine (ANS), 3: right posterior nasal spine (PNS), 4: left posterior nasal spine (PNS), 5: the most anterior point of lateral plate of the right pterygoid process, 6: the most anterior point of medial plate of the right pterygoid process, 7: the most anterior point of medial plate of the left pterygoid process, and 8: the most anterior point of lateral plate of the left pterygoid process. c Disarticulation between medial and lateral pterygoid plates on both right and left pterygopalatine suture after expansion

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