Progress in Orthodontics

Table 2 Cephalometric measurement changes of the study group in different treatment stages

From: Changes in lips, cheeks and tongue pressures after upper incisor protrusion in Class II division 2 malocclusion: a prospective study

	T1-T0		T2-T1		T2-T0
	Mean difference ± SD	p	Mean difference ± SD	p	Mean difference ± SD	p
U1-SN (°)	19.43 ± 1.47	0.000*	−2.21 ± 0.97	0.107	17.22 ± 1.43	0.000*
U1-NA (°)	20.02 ± 1.45	0.000*	−2.30 ± 0.90	0.058	17.72 ± 1.31	0.000*
U1-NA (mm)	6.29 ± 0.43	0.000*	−0.26 ± 0.28	1.000	6.03 ± 0.30	0.000*

*p < 0.001

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