Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

146 questions · 212 findings · 13 reviews · Periodontology

No studies found 14 · 6.6%GRADE not reported 141 · 66.5%Very low 46 · 21.7%Low 8 · 3.8%Moderate 3 · 1.4%High 0 · 0%

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

Endodontic flare-up · Adults with a symptomatic necrotic tooth or localised acute apical abscess (no signs of spreading infection or systemic involvement)

Postoperative systemic antibiotics… showed no clear difference in endodontic flare-up compared with matched placebo, partial or total chemo-mechanical debridement and…; GRADE not reported.

1 finding from 1 review

Illicit drug use vs People who do not use drugs

DMFT/DMFS index (dental caries experience) · People who use drugs (PWUD): methamphetamine, heroin, opiate, cannabis and cocaine users

Illicit drug use was associated with substantially higher odds of dental caries experience (DMFT) (pooled OR 4.11, 95% CI 2.07-8.15; 7 studies; high heterogeneity I2=90.5%; ungraded).

1 finding from 1 review

Illicit drug use vs People who do not use drugs

Periodontal disease · People who use drugs (PWUD): methamphetamine, heroin, opiate, cannabis and cocaine users

Illicit drug use was not significantly associated with periodontal disease (pooled OR 1.44, 95% CI 0.80-2.60; 5 studies; substantial heterogeneity I2=85%; ungraded).

1 finding from 1 review

Doxycycline + SRP vs Metronidazole + SRP

Clinical attachment level (CAL) · Adults with aggressive periodontitis

Doxycycline + SRP showed no clear difference in clinical attachment level (CAL) compared with metronidazole + SRP; GRADE not reported.

3 findings from 1 review

Doxycycline + SRP vs Metronidazole + SRP

Probing pocket depth · Adults with aggressive periodontitis

Doxycycline + SRP showed no clear difference in probing pocket depth compared with metronidazole + SRP; GRADE not reported.

3 findings from 1 review

Clindamycin + SRP vs Metronidazole + SRP

Probing pocket depth · Adults with aggressive periodontitis

Clindamycin + SRP showed no clear difference in probing pocket depth compared with metronidazole + SRP; GRADE not reported.

3 findings from 1 review

Doxycycline + SRP vs Metronidazole + SRP

Percentage of bleeding on probing (BOP) · Adults with aggressive periodontitis

Doxycycline + SRP showed no clear difference in percentage of bleeding on probing (BOP) compared with metronidazole + SRP; GRADE not reported.

3 findings from 1 review

Doxycycline + SRP vs Amoxicillin + metronidazole + SRP

Clinical attachment level (CAL) · Adults with aggressive periodontitis

Doxycycline + SRP showed no clear difference in clinical attachment level (CAL) compared with amoxicillin + metronidazole + SRP; GRADE not reported.

2 findings from 1 review

Doxycycline + SRP vs Amoxicillin + metronidazole + SRP

Probing pocket depth · Adults with aggressive periodontitis

Doxycycline + SRP showed no clear difference in probing pocket depth compared with amoxicillin + metronidazole + SRP; GRADE not reported.

2 findings from 1 review

Clindamycin + SRP vs Metronidazole + SRP

Clinical attachment level (CAL) · Adults with aggressive periodontitis

Clindamycin + SRP showed no clear difference in clinical attachment level (CAL) compared with metronidazole + SRP; GRADE not reported.

3 findings from 1 review

Doxycycline + SRP vs Amoxicillin + metronidazole + SRP

Adverse events · Adults with aggressive periodontitis

Doxycycline + SRP showed no clear difference in adverse events compared with amoxicillin + metronidazole + SRP; GRADE not reported.

1 finding from 1 review