Findings

What do systematic reviews say?

2 questions · 2 findings · 1 reviews

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 2 · 100%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Low‐level laser therapy vs Placebo (sham) laser therapy

Maximum pain (verbal rating scale, VRS) · People requiring retreatment of periapical lesions (failed root canal therapy)

1 finding from 1 review

Endodontic procedures for retreatment of periapical lesions 2016 · Cochrane All outcomes
first postoperative week
Maximum pain (VRS): 0 per 1000 (placebo) vs 0 per 1000 (LLLT); effect not estimable; 52 participants. No high-pain events in either group.
1 study · 52 participants
Very low

Low‐level laser therapy vs Control (no laser device used)

Maximum pain (verbal rating scale, VRS) · People requiring retreatment of periapical lesions (failed root canal therapy)

It is very uncertain whether low energy level laser therapy (LLLT) changes maximum pain (verbal rating scale, VRS) compared with control (no laser device used) (very low certainty).

1 finding from 1 review

Endodontic procedures for retreatment of periapical lesions 2016 · Cochrane All outcomes
first postoperative week
RR 0.04 [0.00, 0.71]
1 study · 44 participants
Very low