| RCT | root canal treatment |
| RB | risk of bias |
| LLLT | low-level laser therapy |
| NSAIDs | nonsteroidal anti-inflammatory drugs |
| EALs | electronic apex locators |
| RCT | root canal treatment |
| RB | risk of bias |
| LLLT | low-level laser therapy |
| NSAIDs | nonsteroidal anti-inflammatory drugs |
| EALs | electronic apex locators |