Table 5.

Means, Standard Deviations, Mean Differences Between Group I and Group II for Cephalometric Angular Measurements of Lower Teeth 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
L7-C.A	−7.92 ± 4.56	0.71 ± 3.28	−8.64	1.25	−11.18 to −6.09	≤.001
L6-C.A	−2.97 ± 3.21	0.88 ± 4.54	−3.85	1.24	−6.37 to −1.33	.002
L5-C.A	−0.32 ± 2.83	1.18 ± 2.90	−1.50	0.91	−3.33 to 0.33	.107
L4-C.A	3.03 ± 2.61	1.05 ± 1.77	1.98	0.71	0.55 to 3.41	.008
LI-C.A	5.74 ± 2.56	2.82 ± 1.80	2.92	0.70	1.50 to 4.33	≤.001

^aCI indicates confidence interval; Diff., difference; L4-C.A, lower first premolar angle to corpus axis; L5-C.A, lower second premolar angle to corpus axis; L6-C.A, lower first molar angle to corpus axis; L7-C.A, lower second molar angle to corpus axis; LI-C.A, lower central incisor angle to corpus axis; SD, standard deviation; Std., standard.