Table 1 Search strategy and results for T pubmed, Embase and cochranme library
| Database | Search strategy | Result |
|---|---|---|
| pubmed | #1: pain OR discomfort OR toothache | 591803 |
|
#2 :(low power laser) OR ( low level laser ) OR LLLT OR (low output laser) OR (low intensity laser) | 10881 | |
| #3: orthodontic* | 52498 | |
| #4 : #1 AND #2 AND #3 | 33 | |
| EMBASE | #1: pain OR discomfort OR toothache | 1054689 |
|
#2 : (low power laser) OR ( low level laser ) OR LLLT OR (low output laser) OR (low intensity laser) | 19478 | |
| #3: orthodontic* | 61408 | |
| #4: #1 AND #2 AND #3 | 49 | |
| The Cochrane library | #1: (pain OR discomfort OR toothache) AND laser AND orthodontic* | 42 |