Table 7.

Means, Standard Deviations, Mean Differences Between Group I and Group II for Cephalometric Skeletal Measurements That Had Occurred Between T1 and T2^a

Variable	Group I, Mean ± SD	Group II, Mean ± SD	Mean Diff.	Std. Error Mean	95% CI of the Diff.	P Value
SNA (°)	−0.11 ± 1.49	0.18 ± 0.70	−0.28	0.19	−0.67 to 0.10	.256
SNB (°)	0.18 ± 1.11	0.20 ± 0.57	−0.02	0.28	−0.58 to 0.54	.456
ANB (°)	−0.23 ± 0.91	−0.04 ± 0.63	−0.19	0.24	−0.69 to 0.31	.438
Mx-Mn (°)	0.22 ± 0.59	0.69 ± 0.89	−0.47	0.24	−0.96 to 0.01	.067
FH-Mn (°)	0.15 ± 0.47	0.42 ± 0.49	−0.27	0.15	−0.57 to −0.03	.085
LFH (%)	−0.09 ± 0.54	0.41 ± 0.42	−0.51	0.15	−0.82 to −0.19	.002

^aCI indicates confidence interval; Diff., difference; FH-Mn indicates Frankfort mandibular plane angle; LFH, lower facial height; Mx-Mn, maxillary-mandibular plane angle; SD, standard deviation; Std., standard.