Correlation Analysis between Three-Dimensional Changes in Pharyngeal Airway Space and Skeletal Changes in Patients with Skeletal Class II Malocclusion following Orthognathic Surgery

Figure 4

Measurement of the volume, SA, AP, and TV width measurement of the airway. (a) The subdivision of the pharyngeal airway space volume. (b) SA 0: the sectional area in the axial view of the PNS planes. (c) AP, TV width 0: AP, TV width in the axial view of the PNS planes. (d) SA 1: the sectional area in the axial view of the CV1 plane. (e) AP, TV width 1: AP, TV width in the axial view of the CV1 plane. (f) SA 2: the sectional area in the axial view of the CV2 plane. (g) AP, TV width 2: AP, TV width in the axial view of the CV2 plane. (h) SA 3: the sectional area in the axial view of the CV3 plane. (i) AP, TV width 3: AP, TV width in the axial view of the CV3 plane.

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