3.3. Count of Debris
The results showed that there were no significant differences in the count of debris between the laser groups when compared to the control group, except for laser 4 (The analysis of the effect of laser tip design in combination with the duration of laser application showed that there was a significant difference between Laser 1 and Laser 3, Laser 1 and Laser 4, and Laser 2 and Laser 4 (