Table 2: Spherical coordinates of facial lines before and after orthognathic surgery.
* Statistically significant in comparing between before surgery and after surgery by Wilcoxon’s signed-rank test (p<.05)
| Facial LIne | Facial Side | | Presurgical | Postsurgical | |
| | | Mean | SD | Mean | SD | P |
| Ramal height line (Cdsup-Goinf) | Deviated side | v(mm) | 67.09 | 9.07 | 67.07 | 11.49 | 0.966 |
| | θ(°) | -0.64 | 3.71 | 3.34 | 3.03 | 0.091 |
| | ρ(°) | 8.91 | 4.91 | 7.77 | 7.20 | 0.849 |
| Opposite side | v(mm) | 68.39 | 9.52 | 68.49 | 13.29 | 0.979 |
| | θ(°) | 5.14 | 3.23 | 6.70 | 4.66 | 0.212 |
| | ρ(°) | 11.56 | 6.11 | 10.23 | 7.73 | 0.545 |
| Ramal lateral line (Cdlat-Golat) | Deviated side | v(mm) | 55.50 | 7.58 | 51.93 | 11.24 | 0.181 |
| | θ(°) | 9.06 | 2.35 | 10.97 | 4.24 | 0.256 |
| | ρ(°) | 8.31 | 4.81 | 4.13 | 6.18 | 0.050 |
| Opposite side | v(mm) | 55.73 | 7.67 | 57.40 | 13.62 | 0.718 |
| | θ(°) | 13.34 | 4.22 | 14.57 | 4.28 | 0.281 |
| | ρ(°) | 10.91 | 6.32 | 13.30 | 8.19 | 0.425 |
| Ramal Posterior line (Cdpost-Gopost) | Deviated side | v(mm) | 41.76 | 6.25 | 40.04 | 8.71 | 0.319 |
| | θ(°) | 1.29 | 3.79 | 0.14 | 7.08 | 0.655 |
| | ρ(°) | 6.31 | 4.39 | 6.09 | 3.98 | 0.869 |
| Opposite side | v(mm) | 44.24 | 7.27 | 43.01 | 6.42 | 0.148 |
| | θ(°) | 5.10 | 6.86 | 5.37 | 5.76 | 0.867 |
| | ρ(°) | 8.20 | 9.54 | 8.40 | 8.27 | 0.956 |
| Mandibular body line (Gopost-Me) | Deviated side | v(mm) | 99.70 | 10.11 | 95.86 | 10.20 | 0.122 |
| | θ(°) | 25.04 | 3.65 | 30.67 | 4.30 | 0.002* |
| | ρ(°) | 57.87 | 2.90 | 55.86 | 4.75 | 0.241 |
| Opposite side | v(mm) | 103.33 | 8.96 | 94.20 | 8.72 | 0.004* |
| | θ(°) | 32.69 | 3.20 | 31.84 | 2.01 | 0.432 |
| | ρ(°) | 57.54 | 3.99 | 55.41 | 6.84 | 0.327 |