Statistical analysis
Data are presented as the mean ± SD. Data were first tested by Shapiro–Wilk tests to determine if they were normally distributed. Two independent sample t tests were used for intergroup comparisons of patient age, time for socket recovery, dimension changes and histological results. Intragroup comparisons of dimension changes in alveolar bone 2 months after the treatment were determined using the paired t test. Sex, location and smoking habit were evaluated with Fisher’s exact test. The level of statistical significance was set at 