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Table 4 Sagittal, vertical, and angular measurements for the tooth-borne protraction facemask group

From: Comparison of two maxillary protraction protocols: tooth-borne versus bone-anchored protraction facemask treatment

Variables (mm) T1 T2 T2 – T1
Sagittal Min Max Mean SD Min Max Mean SD Diff
 OLp–A pt. 60.58 75.17 68.06 3.90 60.77 75.94 69.59 4.26 1.53
 OLp–B pt. 69.02 83.23 76.74 4.96 66.62 82.46 75.41 4.86 −1.33
 OLp–Pg 69.60 87.26 78.18 5.53 66.34 85.15 77.14 5.58 −1.05
 Wits −13.63 −2.88 −8.26 3.11 −9.12 1.63 −5.74 3.23 2.52
 OLp–Is 63.55 83.90 75.49 4.92 69.98 87.26 78.99 4.46 3.49
 OLp–Ii 65.86 85.63 77.48 4.95 66.72 80.83 75.22 4.29 −2.27
 Overjet −4.22 0.00 −1.99 0.90 0.00 8.74 3.77 2.17 5.76
 OLp–Ms 40.99 55.97 49.30 4.49 44.74 61.54 51.94 4.86 2.64
 OLp–Mi 42.72 62.21 52.80 5.79 43.68 60.67 52.70 5.11 −0.12
 Molar relationship −7.87 −0.58 −3.47 2.20 −5.66 1.73 −0.75 2.06 2.72
Vertical (mm)          
 OLparallel–A pt. 23.81 40.42 31.47 5.62 26.11 45.98 34.54 5.24 3.07
 Is–NL 20.64 30.62 25.74 2.61 21.02 30.34 26.03 2.52 0.29
 Ii–ML 34.27 43.01 38.28 2.45 35.42 42.82 39.02 1.91 0.75
 Overbite 0.00 9.02 3.32 2.36 0.00 3.84 2.08 1.07 −1.24
 Msc–NL 16.32 22.75 19.44 1.54 17.38 23.33 20.74 1.96 1.30
 Mic–ML 26.30 30.62 28.62 1.25 27.07 31.87 29.60 1.47 0.98
Angular (°)          
 SNA 73.82 82.75 78.85 2.85 75.36 84.19 79.55 2.78 0.69
 SNB 74.02 83.42 79.27 2.76 72.77 81.41 77.54 2.28 −1.73
 ANB −3.65 3.07 −0.41 2.02 −2.59 6.34 2.01 2.54 2.42
 SNL–ML 23.42 38.21 32.09 4.59 27.36 41.38 34.43 4.17 2.33
 SNL–OL 12.58 27.94 19.96 4.99 11.04 24.10 17.98 4.20 −1.98
 SNL–NL 1.73 12.38 7.88 3.21 4.51 12.00 7.89 2.04 0.01
 Is–SNL 87.36 116.54 103.17 8.31 94.94 113.47 105.36 6.44 2.19
 Ii–ML 68.93 102.72 86.75 9.18 72.96 96.00 81.75 7.09 −4.99