Figure 2.

Box plots for the anatomical and outcome variables described for baseline (preop) and 1-year postoperative time (1 year) and procedure applied (immediate or delayed); volume of alveolar ridge or V into the VOI, and outcome variable (alveolar ridge volume change or ΔV_{1 yr}, and its percentages or %ΔV_{1 yr}). In box-and-whiskers plot, the box line represents the lower, median, and upper quartile values, the whisker lines include the rest of the data. Outliers were data with values beyond the ends of the whiskers. Wilcoxon rank-sum test significance between unpaired data (p_W).