Comparison 1. Low‐level laser therapy versus placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Patient‐reported pain intensity or pain relief measured on a visual analogue scale (VAS) at 6 hours, 24 hours, 3 days, 7 days	2		Mean Difference (IV, Random, 95% CI)	Subtotals only
1.1 6 hours	2	118	Mean Difference (IV, Random, 95% CI)	‐10.63 [‐22.33, 1.07]
1.2 24 hours	2	118	Mean Difference (IV, Random, 95% CI)	‐20.27 [‐24.50, ‐16.04]
1.3 3 days	2	118	Mean Difference (IV, Random, 95% CI)	‐10.76 [‐13.80, ‐7.73]
1.4 7 days	1	58	Mean Difference (IV, Random, 95% CI)	‐6.39 [‐8.65, ‐4.13]