Table 3.
Initial | Change after treatment | Final | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RME group | MME group | RME group | MME group | RME group | MME group | |||||||||
T0 | T0 | T1–T0 | T1–T0 | T1 | T1 | |||||||||
Cast measure (mm) | Mean | SD | Mean | SD | p value | Mean | p value | Mean | p value | Mean | SD | Mean | SD | p value |
Maxillary arch width | ||||||||||||||
Intermolar | 43.2 | 1.576 | 41.62 | 3.72 | ns | 8.8 | *** | 8.7 | *** | 52 | 2.40 | 50.31 | 5.30 | ns |
Inter second premolar | 38.39 | 1.784 | 36.93 | 2.78 | ns | 7.28 | *** | 6.9 | *** | 45.67 | 2.15 | 43.83 | 4.52 | ns |
Inter first premolar | 33.9 | 1.698 | 32.66 | 2.23 | ns | 6.82 | *** | 7.33 | *** | 40.72 | 2.47 | 40 | 4.40 | ns |
Intercanine | 29.32 | 2.135 | 28.62 | 2.26 | ns | 4.3 | *** | 3.70 | *** | 33.62 | 1.55 | 32.33 | 2.12 | * |
Mandibular arch width | ||||||||||||||
Intermolar | 41.37 | 2.139 | 41.2 | 2.57 | ns | 1.5 | * | 2.09 | ** | 42.87 | 2.35 | 43.29 | 2.62 | ns |
Inter second premolar | 36.02 | 1.874 | 35.27 | 2.61 | ns | 1.17 | * | 2.36 | ** | 37.2 | 1.69 | 37.63 | 2.79 | ns |
Inter first premolar | 30.55 | 2.356 | 29.88 | 1.85 | ns | 0.8 | ns | 1.91 | ** | 31.35 | 1.38 | 31.79 | 2.44 | ns |
Intercanine | 24.9 | 1.382 | 24.45 | 1.50 | ns | 0.85 | ns | 1.13 | * | 25.75 | 1.58 | 25.59 | 1.68 | ns |
Maxillary arch depth | 28.61 | 1.909 | 27.5 | 1.98 | ns | −0.59 | ns | −0.16 | ns | 28.02 | 2.80 | 27.34 | 2.18 | ns |
Mandibular arch depth | 25.17 | 1.599 | 23.59 | 1.86 | ns | 0.3 | ns | −0.59 | ns | 25.47 | 1.59 | 23 | 2.37 | *** |
ns not significant
*p < 0.05; **p < 0.01; ***p < 0.001;