The descriptive statistical methods were used to show the differences in bone density and ISQ values among location, gender, age and implant diameter variables. Mann-whitney test was used for comparison of HU values and ISQ values between different age and gender groups. Kruskal-Wallis test was used for comparison of HU values and ISQ values between different location and implant diameter groups. The changes of ISQ values over time were compared using Wilcoxon signed rank test. The Spearman's rank correlation coefficient was used to investigate the correlation between ISQ values and HU values.