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Hình. 7,19. Độ nghiêng của các midplane mặt từ trán (z) trung bình 3-D là mặt phẳng tham chiếu cephalometric Một đo lường Dự góc trên (y) theo chiều dọc 3-D mặt phẳng tham chiếu cephalometric (3-D CT, các mô cứng, bệnh nhân KC) | 7.1 3-D Cephalometric Hard Tissue Analysis CHAPTER 7 Fig. 7.19. The frontal inclination of the facial midplane from the median z 3-D cephalometric reference plane is a projected angular measurement on the vertical y 3-D cephalometric reference plane 3-D CT hard tissues patient K.C. Fig. 7.20. The right a and left b gonial angles Cor-Gor-Men CopGopMen are projected angular soft tissue measurements on the median z 3-D cephalometric reference plane 3-D CT hard tissues patient K.C. 253 3-D Cephalometric Analysis 7.1.3 Orthogonal Arithmetical Hard Tissue Analysis 7.1.3.1 Orthogonal Analysis to the Horizontal x Plane Fig. 7.21 a b. Set-up of vertical orthogonal hard tissue measurements to the horizontal x plane 3-D CT patient K.C. 254 7.1 3-D Cephalometric Hard Tissue Analysis CHAPTER 7 7.1.3.2 Orthogonal Analysis to the Vertical y Plane Fig. 7.22 a b. Set-up of horizontal orthogonal hard tissue measurements to the vertical y plane 3-D CT patient K.C. .