Table 4. Mean differences between the right and left distance from landmarks of maxillary and mandibular teeth to the 5 reference planes.
| Group | Plane | Pre-operation | Post-operation | ||||||
|---|---|---|---|---|---|---|---|---|---|
| U3 | U6 | L3 | L6 | U3 | U6 | L3 | L6 | ||
| Mean±SD | Mean±SD | Mean±SD | Mean±SD | Mean±SD | Mean±SD | Mean±SD | Mean±SD | ||
| Group1 | FHP-P | 1.20±1.39 | 1.07±0.96 | 0.71±0.45 | 0.75±0.46 | 0.97±0.46 | 1.08±0.63 | 0.59±0.35 | 1.12±0.56 |
| FHP-O | 1.39±1.32 | 1.4±0.99 | 0.74±0.65 | 0.94±0.48 | 1.02±0.48 | 1.49±0.93 | 0.71±0.53 | 1.43±0.77 | |
| FHP-L | 1.19±1.38 | 1.08±0.95 | 0.72±0.45 | 0.75±0.47 | 0.98±0.46 | 1.08±0.64 | 0.59±0.35 | 1.13±0.55 | |
| FHP-R | 1.02±1.40 | 1.07±0.97 | 0.72±0.44 | 0.75±0.46 | 0.97±0.47 | 1.09±0.64 | 0.59±0.35 | 1.12±0.58 | |
| LSP | 1.72±1.86 | 1.32±0.85 | 0.68±0.72 | 1.13±1.07 | 1.13±0.73 | 1.43±1.26 | 0.85±0.63 | 1.52±1.02 | |
| p-value | 0.943 | 0.993 | 1.00 | 0.93 | 0.999 | 0.984 | 0.999 | 0.998 | |
| Group2 | FHP-P | 1.30±1.08 | 2.33±1.88 | 1.44±1.04 | 2.06±1.28 | 1.05±0.70 | 1.88±1.07 | 0.59±0.33 | 0.93±1.08 |
| FHP-O | 1.16±0.98 | 2.27±1.71 | 1.29±0.78 | 1.93±1.24 | 0.82±0.63 | 1.71±1.04 | 0.43±0.28 | 1.08±1.36 | |
| FHP-L | 1.30±1.08 | 2.33±1.88 | 1.44±1.04 | 2.06±1.27 | 1.04±0.70 | 1.88±1.07 | 0.59±0.33 | 0.93±1.10 | |
| FHP-R | 1.31±1.08 | 2.32±1.89 | 1.45±1.04 | 2.06±1.29 | 1.05±0.71 | 1.89±1.06 | 0.58±0.34 | 0.93±1.06 | |
| LSP | 1.23±1.20 | 2.58±2.03 | 1.39±0.87 | 2.38±1.55 | 1.08±0.72 | 2.12±1.18 | 0.46±0.37 | 1.43±1.55 | |
| p-value | 0.996 | 0.958 | 0.998 | 0.996 | 0.702 | 0.869 | 0.919 | 0.945 | |
| Group3 | FHP-P | 1.4±1.25 | 1.12±0.98 | 1.48±0.88 | 0.81±0.91 | 0.8±0.67 | 1.04±0.72 | 0.96±0.45 | 1.07±0.82 |
| FHP-O | 1.56±1.13 | 1.61±0.91 | 1.5±0.95 | 1.23±1.09 | 0.87±0.64 | 0.99±0.62 | 0.98±0.56 | 1.02±0.83 | |
| FHP-L | 1.41±1.24 | 1.12±0.98 | 1.48±0.88 | 0.81±0.91 | 0.81±0.67 | 1.03±0.74 | 0.97±0.44 | 1.05±0.83 | |
| FHP-R | 1.41±1.24 | 1.12±0.98 | 1.48±0.88 | 0.81±0.90 | 0.80±0.67 | 1.05±0.71 | 0.96±0.45 | 1.08±0.81 | |
| LSP | 2.15±1.26 | 1.78±1.05 | 1.79±1.03 | 1.67±1.26 | 1.20±0.62 | 1.7±1.06 | 1.27±0.53 | 1.50±0.76 | |
| p-value | 0.836 | 0.312 | 0.224 | 0.897 | 0.836 | 0.312 | 0.224 | 0.897 | |
The differences between the right and left distance from landmarks of maxillary and mandibular teeth (8 landmarks defined in Table 2) to reference planes are indicated as U3:UL3−UR3; U6: UL6−UR6; L3: LL3−LR3; L6: LL6−LR6.