Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,121 questions · 2,186 findings · 242 reviews

No studies found 493 · 22.6%GRADE not reported 158 · 7.2%Very low 600 · 27.4%Low 474 · 21.7%Moderate 364 · 16.7%High 97 · 4.4%

Antibiotic prophylaxis before dental procedure vs placebo or no prophylaxis

Development of endocarditis due to other (non-dental) causes · Adults or children at increased risk of bacterial endocarditis (pre-existing cardiac condition) undergoing an invasive dental procedure

The review found no eligible studies for this question.

1 finding from 1 review

Antibiotic prophylaxis before dental procedure vs placebo or no prophylaxis

Development of endocarditis (in those with definite indication for prophylaxis) · Adults or children at increased risk of bacterial endocarditis (pre-existing cardiac condition) undergoing an invasive dental procedure

It is very uncertain whether antibiotic prophylaxis before dental procedure changes development of endocarditis (in those with definite indication for… compared with no antibiotic prophylaxis or placebo (very low certainty).

1 finding from 1 review

Comparison 2: any simplified antibiotic regimen vs 7 days injectable benzylpenicillin + injectable gentamicin

Neonatal mortality · neonates with possible serious bacterial infection

Comparison 2: any simplified antibiotic regimen showed no clear difference in neonatal mortality compared with the standard antibiotic regimen (7 days injectable benzylpenicillin… (moderate certainty).

1 finding from 1 review

Comparison 2: any simplified antibiotic regimen vs 7 days injectable benzylpenicillin + injectable gentamicin

Treatment failure · neonates with possible serious bacterial infection

Comparison 2: any simplified antibiotic regimen showed no clear difference in treatment failure compared with the standard antibiotic regimen (7 days injectable benzylpenicillin… (moderate certainty).

1 finding from 1 review

Comparison 2: any simplified antibiotic regimen vs 7 days injectable benzylpenicillin + injectable gentamicin

Adverse events · neonates with possible serious bacterial infection

Comparison 2: any simplified antibiotic regimen showed no clear difference in adverse events compared with the standard antibiotic regimen (7 days injectable benzylpenicillin… (moderate certainty).

1 finding from 1 review

Prophylactic antibiotic at one dose or duration vs Same antibiotic at a different dose or duration

Outcome not reported · Adults undergoing dental implant placement
1 finding from 1 review

Prophylactic systemic antibiotics (amoxicillin) vs placebo or no antibiotic

Prosthesis failure · Adults undergoing dental implant placement

Prophylactic systemic antibiotics (amoxicillin) showed no clear difference in prosthesis failure compared with no antibiotics or placebo; GRADE not reported.

1 finding from 1 review

Prophylactic systemic antibiotics (amoxicillin) vs placebo or no antibiotic

Postoperative infection · Adults undergoing dental implant placement

Prophylactic systemic antibiotics (amoxicillin) showed no clear difference in postoperative infection compared with no antibiotics or placebo; GRADE not reported.

1 finding from 1 review

Prophylactic systemic antibiotics (amoxicillin) vs placebo or no antibiotic

Implant failure · Adults undergoing dental implant placement

Prophylactic systemic antibiotics (amoxicillin) probably leads to lower implant failure compared with no antibiotics or placebo (moderate certainty).

1 finding from 1 review

Prophylactic systemic antibiotics (amoxicillin) vs placebo or no antibiotic

Adverse events · Adults undergoing dental implant placement

Prophylactic systemic antibiotics (amoxicillin) showed no clear difference in adverse events compared with no antibiotics or placebo; GRADE not reported.

1 finding from 1 review

Single‐dose antibiotic vs short duration antibiotics

Recurrent asymptomatic bacteriuria ‐ all trials · patients with asymptomatic bacteriuria during pregnancy

It is very uncertain whether single‐dose antibiotic changes recurrent asymptomatic bacteriuria ‐ all trials compared with short‐course (four‐ to seven‐day) antibiotic (very low certainty).

1 finding from 1 review

Single‐dose antibiotic vs short duration antibiotics

Pyelonephritis ‐ Same antimicrobial agent only4 · patients with asymptomatic bacteriuria during pregnancy

It is very uncertain whether single‐dose antibiotic changes pyelonephritis ‐ Same antimicrobial agent only4 compared with short‐course (four‐ to seven‐day) antibiotic (very low certainty).

1 finding from 1 review

Single‐dose antibiotic vs short duration antibiotics

Low birthweight ‐ Same antimicrobial agent only · patients with asymptomatic bacteriuria during pregnancy

Single‐dose antibiotic leads to higher low birthweight ‐ Same antimicrobial agent only compared with short‐course (four‐ to seven‐day) antibiotic (high certainty).

1 finding from 1 review

Single‐dose antibiotic vs short duration antibiotics

Preterm delivery ‐ Same antimicrobial agent only · patients with asymptomatic bacteriuria during pregnancy

Single‐dose antibiotic showed no clear difference in preterm delivery ‐ Same antimicrobial agent only compared with short‐course (four‐ to seven‐day) antibiotic (moderate certainty).

1 finding from 1 review