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Fig. 3 | Progress in Orthodontics

Fig. 3

From: Changes in the midpalatal and pterygopalatine sutures induced by micro-implant-supported skeletal expander, analyzed with a novel 3D method based on CBCT imaging

Fig. 3

Schematic representation of the three main reference planes: maxillary sagittal plane (MSP), axial palatal plane (APP), and V-coronal plane (VCP). Reference planes are localized in the pre-expansion CBCT and become the reference lines to measure the displacement of skeletal structures in the post-expansion CBCT

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