Table 2.

Horizontal and vertical ridge changes in the control and the test groups (in mm)

	Levels	Control group	Test group	P value
Horizontal changes	1 mm	5.4 ± 3.9	2.5 ± 1.9	.021
		[3.9, (2.6, 7.8)]	[2.3, (0.6, 4.3)]
	3 mm	2.4 ± 2.9	1.9 ± 2.0	.572
		[1.4, (1.1, 2.8)]	[1.4, (0.3, 3.0)]
	5 mm	1.0 ± 0.7	1.4 ± 1.4	.711
		[1.1, (0.6, 1.4)]	[0.8, (0.3, 2.3)]
Vertical changes	VHB	2.6 ± 2.5	1.1 ± 1.5	.060
		[1.3, (0.8, 4.0)]	[0.5, (0.3, 1.7)]
	VHM	1.0 ± 1.5	1.0 ± 1.5	.520
		[0.9, (0.5, 1.7)]	[0.5, (0, 1.3)]
	VHL	1.1 ± 1.5	0.5 ± 1.8	.232
		[1.3, (0.4, 1.9)]	[0.4, (0. 1.2)]

Data are expressed as mean ± SD [median, (first and third quartiles)].

Bold face indicates statistical difference between the control and the test groups.