Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,710 questions · 14,842 findings · 1,394 reviews

No studies found 2,880 · 19.4%GRADE not reported 1,413 · 9.5%Very low 3,103 · 20.9%Low 3,870 · 26.1%Moderate 2,663 · 17.9%High 913 · 6.2%

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Postoperative systemic antibiotics (phenoxymethylpenicillin/penicillin VK, 7-day course), partial or total chemo-mechanical debridement and analgesics vs Matched placebo, partial or total chemo-mechanical debridement and analgesics

Adverse effects · Adults with a symptomatic necrotic tooth or localised acute apical abscess (no signs of spreading infection or systemic involvement)
1 finding from 1 review

Occlusal splint vs No treatment or placebo (non-occlusal or transparent-foil placebo splint)

Frequency of joint noise · People with temporomandibular disorders (TMD)

It is very uncertain whether occlusal splint changes frequency of joint noise compared with no treatment or placebo (non-occlusal or transparent-foil placebo… (very low certainty).

1 finding from 1 review

Pentoxifylline vs Placebo or no active treatment

Maximal mouth opening (interincisal distance) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)

It is very uncertain whether pentoxifylline changes maximal mouth opening (interincisal distance) compared with placebo or no active treatment (very low certainty).

2 findings from 1 review

Pharmacotherapy plus counselling vs no pharmacotherapy or placebo plus counselling

Quit at longest · smoking cessation in hospitalised patients

Pharmacotherapy plus counselling leads to higher quit at longest compared with no pharmacotherapy or placebo plus counselling (high certainty).

3 findings from 1 review

Methotrexate vs placebo

Treatment responsea · children and young people with JIA

Methotrexate may leads to higher treatment responsea(up to 6 months) compared with placebo (low certainty).

1 finding from 1 review