In total, for each given implant type with a given diameter/length configuration, 25 measurements for indirect and 5 measurements for direct ISQ computing were performed.

The SPSS statistical software package 22.0 (IBM SPSS, Chicago, USA) was used. A Shapiro-Wilk test was used to verify distribution normality for both direct and indirect determined ISQ values. The paired sample t test and the Wilcoxon signed rank test were used to evaluate the match between direct and indirect ISQ values. The Pearson product-moment correlation coefficient was used to assess the strength of the linear relationship between direct and indirect determined ISQ values. A 0.05 p value was used as type I error.