Measurement | Retainer | Mean | Std. deviation | Mean diff | Std. error mean difference | P value |
Inter canine | Vacuum | 31.4740 | 5.75803 | 0.046 | 0.11 | 0.677 |
3D | 31.5200 | 5.80848 | ||||
Inter premolar 4 | Vacuum | 38.3080 | 5.27847 | 0.181 | 0.14 | 0.245 |
3D | 38.4890 | 5.27680 | ||||
Inter premolar 5 | Vacuum | 43.7500 | 5.03196 | 0.096 | 0.22 | 0.666 |
3D | 43.8460 | 5.39636 | ||||
Inter molar | Vacuum | 49.3060 | 4.61659 | 0.08 | 0.24 | 0.744 |
3D | 49.3860 | 4.87203 | ||||
Canine-midline left | Vacuum | 16.7890 | 3.12837 | 0.06 | 0.07 | 0.432 |
3D | 16.8530 | 3.25482 | ||||
Canine-midline right | Vacuum | 16.9470 | 3.62351 | 0.19 | 0.07 | 0.038* |
3D | 17.1360 | 3.67017 | ||||
Canine-molar left | Vacuum | 21.3270 | 1.30977 | 0.27 | 0.12 | 0.054 |
3D | 21.6010 | 1.26958 | ||||
Canine-molar right | Vacuum | 21.4500 | 1.24846 | 0.18 | 0.11 | 0.151 |
3D | 21.6290 | 1.06282 |