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Table 2 Measurements with changes according to midpalatal suture maturation groups

From: Rapid maxillary expansion outcomes according to midpalatal suture maturation levels

Measurements Time Stage A (mean ± SD) Stage B (mean ± SD) Stage C (mean ± SD) Stage D (mean ± SD) Stage E (mean ± SD) P
Interdental width T0 1.98 ± 0.67 1.55 ± 0.33 2.27 ± 0.56 1.55 ± 0.82 2.11 ± 0.79 0.234
T1 2.79 ± 0.38 2.49 ± 0.29 3.02 ± 0.72 2.43 ± 0.57 2.67 ± 0.92 0.411
P 0.014 0.035 0.001 0.035 0.091  
Nasal spine width T0 4.77 ± 1.32 4.13 ± 1.35 4.54 ± 1.34 4.65 ± 1.84 4.25 ± 1.14 0.940
T1 5.57 ± 1.12 5.14 ± 1.14 5.55 ± 1.47 5.67 ± 1.60 5.29 ± 0.98 0.963
P 0.011 0.045 0.002 0.018 0.032  
Nasal base width T0 18.91 ± 3.02 17.95 ± 6.1 16.71 ± 1.9 19.12 ± 5 18.59 ± 4.57 0.774
T1 20.33 ± 2.78 19.18 ± 5.84 19.2 ± 2.55 21.52 ± 6.03 19.63 ± 4.46 0.845
P 0.006 0.030 0.012 0.008 0.044  
Maxillary width T0 60.19 ± 2.15 55.41 ± 3.40 57.65 ± 4.34 60.33 ± 2.84 58.05 ± 3.906 0.127
T1 63.17 ± 3.05a 57.7 ± 1.83b 60.78 ± 3.11ab 63.68 ± 1.41a 60.35 ± 3.8ab 0.012
P 0.001 0.147 0.001 0.015 0.009  
Palatal intermolar width T0 31.16 ± 3.03 29.77 ± 2.20 30.07 ± 2.89 31.24 ± 1.72 30.03 ± 3.88 0.824
T1 34.85 ± 3.84 33.34 ± 3.10 34.57 ± 4.33 35.9 ± 2.51 35.08 ± 4.18 0.862
P 0.005 0.061 0.001 < 0.001 < 0.001  
Buccal intermolar width T0 49.75 ± 4.02 48.43 ± 1.97 48.66 ± 2.99 51.27 ± 2.30 48.51 ± 4.73 0.523
T1 55.07 ± 3.67 51.96 ± 2.55 53.75 ± 4.11 55.29 ± 3.34 54.02 ± 4.37 0.631
P < 0.001 0.089 < 0.001 0.002 < 0.001  
  1. a, bThere is no difference in the measurements which were marked with the same letter
  2. SD standard deviation