Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

66 questions · 68 findings · 30 reviews

No studies found 22 · 32.4%GRADE not reported 3 · 4.4%Very low 17 · 25%Low 15 · 22.1%Moderate 10 · 14.7%High 1 · 1.5%

Low‐level laser therapy vs placebo

QoL · People with primary burning mouth syndrome (BMS), that is, oral mucosal pain with no dental or medical cause for such symptoms

It is very uncertain whether electromagnetic radiation (low-level laser therapy) changes change in quality of life (QoL) compared with placebo (very low certainty).

1 finding from 1 review