Table 4. Evaluation of alterations at the coronal and apical level.

-	-	Mean	SD	p
Expansion	A	2.58	1.29	0.021*
	C	1.59	1.88
V-mm	A	3.60	2.10	0.000***
	C	6.13	3.16
H-mm	A	2.23	1.34	0.246
	C	2.45	1.35

p-values for Independent Samples t-test

^*p≤0.05, **p≤0.001

SD: Standard deviation, mm: millimeters