Table 2 Comparison between the root resorption scores on the laser and control sides, pre- and post-retraction, in the two study groups
| Â | Laser side | Control side | WSR p value |
|---|---|---|---|
N (%) | |||
Group A | |||
 Pre-retraction | |||
  Score 0 | 8 (80%) | 7 (70%) | 0.56 |
  Score 1 | 2 (20%) | 3 (30%) |  |
  Score 2 | 0 (0%) | 0 (0%) |  |
  Score 3 | 0 (0%) | 0 (0%) |  |
 Post-retraction | |||
  Score 0 | 8 (80%) | 5 (50%) | 0.10 |
  Score 1 | 2 (20%) | 3 (30%) |  |
  Score 2 | 0 (0%) | 2 (20%) |  |
  Score 3 | 0 (0%) | 0 (0%) |  |
 WSR p value | 1.00 | 0.06 |  |
Group B | |||
 Pre-retraction | |||
  Score 0 | 8 (80%) | 8 (80%) | 1.00 |
  Score 1 | 2 (20%) | 2 (20%) |  |
  Score 2 | 0 (0%) | 0 (0%) |  |
  Score 3 | 0 (0%) | 0 (0%) |  |
 Post-retraction | |||
  Score 0 | 7 (70%) | 6 (60%) | 0.32 |
  Score 1 | 3 (30%) | 3 (30%) |  |
  Score 2 | 0 (0%) | 1 (10%) |  |
  Score 3 | 0 (0%) | 0 (0%) |  |
 WSR p value | 0.32 | 0.16 |  |