Table 3.
Protocol for Laser Irradiation
| Group | Position of laser irradiation  | 
Protocol of laser irradiation | 
|---|---|---|
| I | 1 | 1.0 W/cm2 (cooling x) | 
| 2 | 1.1 W/cm2 (cooling O) | |
| 3 | 1.2 W/cm2 (cooling O) | |
| 4 (control) | 0 W/cm2 | |
| II | 1 | 1.0 W/cm2 (cooling O) | 
| 2 | 1.1 W/cm2 (cooling O) | |
| 3 | 1.2 W/cm2 (cooling O) | |
| 4 | 0 W/cm2 | |
| III | 1 | 1.0 W/cm2 (cooling O) | 
| 2 | 1.1 W/cm2 (cooling O) | |
| 3 | 1.2 W/cm2 (cooling O) | |
| 4 | 0 W/cm2 |