Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

307 questions · 323 findings · 34 reviews

No studies found 87 · 26.9%GRADE not reported 21 · 6.5%Very low 92 · 28.5%Low 72 · 22.3%Moderate 29 · 9%High 22 · 6.8%

Oral paracetamol vs placebo

At least 50% reduction in pain · Patients requiring surgical removal of a lower wisdom tooth or teeth, with baseline moderate to severe pain (surgery under local…

Paracetamol (single oral dose, any dose or formulation; subgroups up… led to higher achieving at least 50% pain relief at 4 hours (using pain intensity… compared with placebo; GRADE not reported.

3 findings from 1 review

Oral paracetamol vs placebo

Patients with one or more adverse events · Patients requiring surgical removal of a lower wisdom tooth or teeth, with baseline moderate to severe pain (surgery under local…

Paracetamol (single oral dose, any dose or formulation; subgroups up… showed no clear difference in patients with one or more adverse events compared with placebo; GRADE not reported.

1 finding from 1 review

Oral paracetamol vs placebo

Participant‐reported pain relief of 50% or greater · Patients requiring surgical removal of a lower wisdom tooth or teeth, with baseline moderate to severe pain (surgery under local…

Paracetamol (single oral dose, any dose or formulation; subgroups up… led to higher achieving at least 50% pain relief at 6 hours (using pain relief… compared with placebo; GRADE not reported.

1 finding from 1 review

Preoperative paracetamol (acetaminophen) vs placebo

Postoperative pain (dichotomous measure: parent report of presence of pain-related behaviours) · Children and adolescents having dental treatment under local anaesthetic (restorative and extraction treatments)

Preoperative paracetamol (acetaminophen) showed no clear difference in postoperative pain (dichotomous measure: parent report of presence… compared with placebo (low certainty).

1 finding from 1 review