Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

142 questions · 204 findings · 7 reviews · All outcomes

No studies found 47 · 23%GRADE not reported 115 · 56.4%Very low 29 · 14.2%Low 13 · 6.4%Moderate 0 · 0%High 0 · 0%

Metronidazole + SRP vs Amoxicillin + metronidazole + SRP

Probing pocket depth · Adults with periodontitis (chronic and aggressive)

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

2 findings from 1 review

Metronidazole + SRP vs SRP

Clinical attachment level (CAL) · Adults with periodontitis (chronic and aggressive)

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

3 findings from 1 review

Metronidazole + SRP vs Amoxicillin + metronidazole + SRP

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

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

2 findings from 1 review

Azithromycin + SRP vs SRP

Adverse events · Adults with periodontitis (chronic and aggressive)

It is very uncertain whether azithromycin + SRP changes adverse events compared with SRP (very low certainty).

1 finding from 1 review

Amoxicillin + metronidazole + SRP vs SRP

Adverse events · Adults with periodontitis (chronic and aggressive)

It is very uncertain whether amoxicillin + metronidazole + SRP changes adverse events compared with SRP (very low certainty).

1 finding 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

Tetracycline + SRP vs SRP

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

The review found no eligible studies for this question.

2 findings from 1 review