Parameters Mean (SD) Changes as a result of
the treatment		 Change
in the follow-up period
T1 T2 T3 T1-T2 P value T2-T3 P-value
N = 11 N = 11 N = 8
A-NSL (mm) 57.98 (6.22) 63.02 (7.56) 60.37 (6.72) 5.04 0.102 -3.08 0.108
A-NSLP (mm) -12.74 (10.09) -5.76 (8.07) -6.79 (8.97) 6.98 0.002a -0.75 0.758
Horizontal overjet (mm) -9.56 (2.14) 2.06 (2.66) 2.11 (0.99) 11.62 0a 0.03 0.969
Vertical overbite (mm) -0.66 (3.46) 1.61 (1.59) 1.72 (1.9) 2.27 0.02a 0.07 0.873
ANB angle (degrees) -4.82 (3.71) 4 (4.6) 2.88 (5.08) 8.82 0a -1.75 0.122
Nasolabial angle (degrees) 72.8 (14.88) 89.4 (12.83) 81.86 (18.01) 16.6 0.001a -5.3 0.4
E-plane (mm) -7.71 (5.95) -2.28 (3.08) -5.01 (1.78) 5.44 0.017a -2.69 0.061

aP < 0.05, paired t-test.
DOG = distraction osteogenesis group; SD = standard deviation; T1 = preoperatively, T2 = after surgery, T3 = follow-up; N = number of patients; A-NSL = A point to the nasion-sella line; A-NSLP = A point to the nasion-sella line perpendicular, ANB = A point-nasion-B point; E-plane = aesthetic plane.