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Table 4 The relative ratio of soft tissue movement to bony movement in the anteroposterior direction and three-dimensional changes of perioral soft tissue after Le Fort I setback & BSSRO

From: Three dimensional evaluation of soft tissue after orthognathic surgery

Landmarks Soft tissue/bony movement (%) X-axis Y-axis Z-axis
mean SD P-value Mean SD P-value Mean SD P-value
Cph (L) 25% − 0.32 0.56 0.13 0.39 1.26 0.38 −0.52 0.92 0.13
Cph (R) 19% 0.33 0.44 0.06 7.23 20.66 0.32 −0.41 0.93 0.23
Ls 14% 0.09 0.41 0.52 0.27 1.29 0.55 −0.29 0.95 0.39
Lip (L1) 3% −0.06 0.38 0.65 0.26 0.85 0.38 −0.06 0.88 0.84
Lip (R1) 16% −0.54 1.74 0.38 0.21 0.64 0.36 −0.33 0.62 0.15
Ch (L) 22% 0.02 0.62 0.94 0.48 1.45 0.35 0.96 2.72 0.32
Ch (R) 40% −0.52 1.02 0.17 −7.08 21.63 0.36 1.69 3.13 0.14
1 52% 0.02 0.10 0.51 −0.45 0.39 *0.01 −1.10 0.65 *0.00
2 40% 0.37 0.37 *0.02 −6.79 18.91 0.31 −0.83 0.65 *0.01
3 43% −0.49 0.38 *0.01 −0.51 0.58 *0.03 −0.90 0.72 *0.01
4 38% 0.43 0.58 0.06 −0.19 0.41 0.19 −0.80 1.01 *0.04
5 31% −0.28 0.40 0.07 −0.12 0.15 *0.04 −0.64 0.73 *0.03
Al (L) 63% −1.26 1.29 *0.01 −1.92 5.47 0.32 −1.32 0.93 *0.00
Al (R) 77% −3.42 13.50 0.47 −0.06 0.11 0.15 −1.62 2.22 0.06
Ac (L) 74% −1.26 1.29 *0.01 −1.92 5.47 0.32 −1.32 0.93 *0.00
Ac (R) 84% −3.42 13.50 0.47 −0.06 0.11 0.15 −1.62 2.22 0.06
Sn 29% −0.09 0.12 0.06 −2.72 9.20 0.40 −0.62 1.31 0.20
Pn 15% −0.03 0.05 0.13 0.01 0.04 0.69 −0.32 0.41 *0.04
  1. SD standard deviation
  2. Asterisks indicate statistical significance between the values of pre- and post-operative measurement (P < 0.05)