Table 1.

Demographic data for the two groups at 1 year of survey. Anatomical and outcome variables before and 1 year after surgery: volume of alveolar ridge or V into the VOI, and outcome variable (alveolar ridge volume change percentages or ΔV%). Shapiro-Wilk test significance (p_SW), Wilcoxon rank-sum test significance between unpaired data (p_W). Statistically significant values are in bold.

Procedure		Immediate			Delayed
sample size		9			10
genders ratio (male/female)		3/6			4/6
incisor/bicuspid		5/4			6/4
Procedure		Immediate			Delayed
Variable	Size		psw	Size		psw	pw Immediate vs. Delayed
Overall
${\mathrm{V}}_{\mathrm{preop}}$ (mm3)	9	0.59(0.11)	0.8799	10	0.61(0.05)	0.6422	0.6526
${\mathrm{V}}_{1\mathrm{yr}}$(mm3)	9	0.54(0.07)	0.2777	10	0.44(0.06)	0.0994	0.0084
ΔV (mm3) preop→1 year	9	−0.04(0.02)	0.2282	10	−0.15(0.07)	0.7607	0.0002
%ΔVpreop→1 year	9	−7.5(3.1)	0.0465	10	−24.2(12.0)	0.8311	<0.0001