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Fig. 10 | Progress in Orthodontics

Fig. 10

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

Fig. 10

a Superimposition of the two images, before and after expansion, illustrating the rotational movement around the center of rotation (CR), near the posterior zygomatic arch. The α value represents the degree of rotation between pre- and post-ANS positions. The β value represents the degree of rotation between pre- and post-PNS positions. b The pterygopalatine suture oriented relatively parallel to maxillary movement. c The pterygopalatine suture is not parallel to maxillary movement

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