 In-Vitro experiments
The average operative time of the freehand group was 177.5 s, whereas the time was 136.5 s in the laser group. The average radiation-exposure time of the freehand and the laser groups was 105.5 s and 27 s, respectively. All differences were statistically significant (Wilcoxon signed rank test, 
In-vitro Experiments data. Descriptive statistics for each group presented as Median (Lower Quartile; Upper Quartile), and Wilcoxon signed rank test was applied