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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

793 questions in 32 reviews · Periodontology

current versions
No studies 148 · 18.7%Ungraded 429 · 54.1%Very low 137 · 17.3%Low 53 · 6.7%Moderate 14 · 1.8%High 12 · 1.5%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Salvadora persica (miswak) mouthrinse vs Placebo rinse
Post-treatment Lactobacillus count · Medically healthy individuals (adults and children, 6-60 years) · Post-treatment
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD -1.12 [-1.45, -0.79]2 studies · 60 participantsUngraded
Oral irrigation plus toothbrushing vs Toothbrushing alone
Plaque · Adults, 16 years and older (dentate) · 1 month
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
SMD -0.16 [-0.41, 0.10]3 studies · 235 participantsLow
Salvadora persica (miswak) mouthrinse vs Pre-treatment (baseline, same group)
Streptococcus mutans count (pre- vs post-treatment) · Medically healthy individuals (adults and children, 6-60 years) · Pre- vs post-treatment
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD 1.82 [1.03, 2.62]5 studies · 71 participantsUngraded
Rubber/elastomeric cleaning stick plus toothbrushing vs Flossing plus toothbrushing
Interproximal caries · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
No included study assessed caries as an outcome.0 studiesNo studies
Interdental brushing plus toothbrushing vs Toothbrushing alone
Interproximal caries · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
No included study assessed caries as an outcome.0 studiesNo studies
Flossing plus toothbrushing vs Toothbrushing alone
Gingivitis (gingival index) · Adults, 16 years and older (dentate) · 1 month
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
SMD -0.58 [-1.12, -0.04]8 studies · 585 participantsLow
Salvadora persica (miswak) mouthrinse vs Chlorhexidine mouthrinse
Post-intervention mean plaque score · Medically healthy individuals (adults and children, 6-60 years) · Post-intervention, Refrained from mechanical plaque control
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD 0.22 [0.05, 0.39]7 studies · 308 participantsUngraded
Placebo rinse vs Pre-treatment (baseline, same group)
Mean plaque score (pre- vs post-treatment) · Medically healthy individuals (adults and children, 6-60 years) · Pre- vs post-treatment
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD -0.19 [-0.39, 0.02]7 studies · 152 participantsUngraded
Oral irrigation plus toothbrushing vs Toothbrushing alone
Gingivitis (proportion of bleeding sites) · Adults, 16 years and older (dentate) · 1 month
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
MD -0.00 [-0.07, 0.06]2 studies · 126 participantsLow
Salvadora persica (miswak) mouthrinse vs Chlorhexidine mouthrinse
Post-intervention mean plaque score · Medically healthy individuals (adults and children, 6-60 years) · Post-intervention, Study quality: moderate-quality studies
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD 0.19 [-0.11, 0.50]10 studies · 616 participantsUngraded
Oral irrigation plus toothbrushing vs Flossing plus toothbrushing
Gingivitis (proportion of bleeding sites) · Adults, 16 years and older (dentate) · 1 month
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
MD -0.12 [-0.19, -0.05]2 studies · 133 participantsLow
Salvadora persica (miswak) mouthrinse vs Placebo rinse
Post-treatment Streptococcus mutans count · Medically healthy individuals (adults and children, 6-60 years) · Post-treatment
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD -1.42 [-2.08, -0.76]5 studies · 142 participantsUngraded
Oral irrigation plus toothbrushing vs Toothbrushing alone
Harms and adverse effects · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
Three studies reported that there were no adverse events, one reported one incidence of aphthous ulcer in irrigator group, one reported oral lacerations but found no difference between the interventions, and one did…5 studiesUngraded
Salvadora persica (miswak) mouthrinse vs Placebo rinse
Post-intervention mean plaque score · Medically healthy individuals (adults and children, 6-60 years) · Post-intervention
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD -0.59 [-0.82, -0.35]12 studies · 452 participantsUngraded
Flossing plus toothbrushing vs Toothbrushing alone
Plaque · Adults, 16 years and older (dentate) · 1 month
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
SMD -0.42 [-0.85, 0.02]7 studies · 542 participantsVery low
Rubber/elastomeric cleaning stick plus toothbrushing vs Interdental brushing plus toothbrushing
Gingivitis (gingival index) · Adults, 16 years and older (dentate) · 4 to 6 weeks
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
MD 0.10 [-0.32, 0.52]1 study · 61 participantsVery low
Rubber/elastomeric cleaning stick plus toothbrushing vs Toothbrushing alone
Harms and adverse effects · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
Harms and adverse outcomes: Not reported (neither study reported on adverse effects).0 studiesNo studies
Chlorhexidine 0.12% mouthrinse vs Pre-treatment (baseline, same group)
Mean plaque score (pre- vs post-treatment) · Medically healthy individuals (adults and children, 6-60 years) · Pre- vs post-treatment, Chlorhexidine concentration: 0.12%
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD 1.79 [1.39, 2.19]2 studies · 126 participantsUngraded
Rubber/elastomeric cleaning stick plus toothbrushing vs Toothbrushing alone
Periodontitis (probing pocket depth) · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
One study measured probing pocket depth but no data were reported (Graziani 2017 mentioned PPD as outcome but no data).1 studyUngraded
Wooden cleaning stick plus toothbrushing vs Toothbrushing alone
Interproximal caries · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
No included study assessed caries as an outcome.0 studiesNo studies
Salvadora persica (miswak) mouthrinse vs Pre-treatment (baseline, same group)
Mean plaque score (pre- vs post-treatment) · Medically healthy individuals (adults and children, 6-60 years) · Pre- vs post-treatment
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD 0.46 [0.29, 0.63]12 studies · 310 participantsUngraded
Placebo rinse vs Pre-treatment (baseline, same group)
Streptococcus mutans count (pre- vs post-treatment) · Medically healthy individuals (adults and children, 6-60 years) · Pre- vs post-treatment
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD 0.34 [-0.07, 0.76]5 studies · 71 participantsUngraded
Interdental brushing plus toothbrushing vs Toothbrushing alone
Periodontitis (probing pocket depth) · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
One study measured probing pocket depth but no data were reported (Graziani 2017).1 studyUngraded
Interdental brushing plus toothbrushing vs Flossing plus toothbrushing
Interproximal caries · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
No included study assessed caries as an outcome.0 studiesNo studies
Wooden cleaning stick plus toothbrushing vs Flossing plus toothbrushing
Gingivitis (gingival index) · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
Gingivitis measured by gingival index: Not measured.0 studiesNo studies
Interdental brushing plus toothbrushing vs Toothbrushing alone
Harms and adverse effects · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
Harms and adverse outcomes (SoF): Neither study reported any information about adverse events. Jared 2005 assessed adverse events (participants issued a symptom diary) but did not report the findings; Graziani 2017 did…1 studyUngraded
Salvadora persica (miswak) mouthrinse vs Chlorhexidine mouthrinse
Post-intervention mean plaque score · Medically healthy individuals (adults and children, 6-60 years) · Post-intervention, Duration of mouthwash use: <3 weeks
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD 0.15 [0.01, 0.29]11 studies · 482 participantsUngraded
Interdental brushing plus toothbrushing vs Toothbrushing alone
Gingivitis (proportion of bleeding sites) · Adults, 16 years and older (dentate) · 1 month
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
MD -0.05 [-0.13, 0.03]1 study · 31 participantsVery low
Wooden cleaning stick plus toothbrushing vs Flossing plus toothbrushing
Harms and adverse effects · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
Harms and adverse outcomes: Not reported (neither study reported on adverse effects).0 studiesNo studies
Rubber/elastomeric cleaning stick plus toothbrushing vs Toothbrushing alone
Plaque · Adults, 16 years and older (dentate) · 1 month
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
MD -0.22 [-0.41, -0.03]1 study · 30 participantsVery low
Rubber/elastomeric cleaning stick plus toothbrushing vs Interdental brushing plus toothbrushing
Interproximal caries · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
No included study assessed caries as an outcome.0 studiesNo studies
Chlorhexidine 0.2% mouthrinse vs Pre-treatment (baseline, same group)
Mean plaque score (pre- vs post-treatment) · Medically healthy individuals (adults and children, 6-60 years) · Pre- vs post-treatment, Chlorhexidine concentration: 0.2%
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD 0.45 [0.19, 0.70]10 studies · 282 participantsUngraded
Wooden cleaning stick plus toothbrushing vs Toothbrushing alone
Harms and adverse effects · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
Harms and adverse outcomes: Not reported (neither study reported on adverse effects).0 studiesNo studies
Salvadora persica (miswak) mouthrinse vs Chlorhexidine 0.12% mouthrinse
Post-intervention mean plaque score · Medically healthy individuals (adults and children, 6-60 years) · Post-intervention, Chlorhexidine concentration: 0.12%
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD 0.52 [0.35, 0.69]5 studies · 396 participantsUngraded
Rubber/elastomeric cleaning stick plus toothbrushing vs Interdental brushing plus toothbrushing
Harms and adverse effects · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
Harms and adverse outcomes (SoF): Not reported. Yost 2006 performed examinations of the oral soft tissue at the final visit but did not report the findings; Graziani 2017 and Smith 1988 did not measure adverse effects.1 studyUngraded
Oral irrigation plus toothbrushing vs Flossing plus toothbrushing
Plaque · Adults, 16 years and older (dentate) · 1 month
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
SMD 0.31 [-0.08, 0.70]2 studies · 133 participantsVery low
Rubber/elastomeric cleaning stick plus toothbrushing vs Interdental brushing plus toothbrushing
Periodontitis (probing pocket depth) · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
Two studies measured periodontitis but data not presented or usable (Smith 1988 PPD unusable; Graziani 2017 measured PPD but no data).2 studiesUngraded
Salvadora persica (miswak) mouthrinse vs Chlorhexidine mouthrinse
Post-intervention mean plaque score · Medically healthy individuals (adults and children, 6-60 years) · Post-intervention, Study quality: high-quality studies
The antiplaque/anticariogenic efficacy of Salvadora persica (Miswak) mouthrinse in comparison to that of… (2019)
MD 0.19 [0.06, 0.31]8 studies · 286 participantsUngraded
Oral irrigation plus toothbrushing vs Toothbrushing alone
Interproximal caries · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
No included study assessed caries as an outcome.0 studiesNo studies
Rubber/elastomeric cleaning stick plus toothbrushing vs Toothbrushing alone
Interproximal caries · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
No included study assessed caries as an outcome.0 studiesNo studies
Interdental brushing plus toothbrushing vs Flossing plus toothbrushing
Periodontitis (probing pocket depth) · Adults, 16 years and older (dentate) · 4 to 6 weeks
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
MD -0.06 [-0.27, 0.16]3 studies · 107 participantsLow
Rubber/elastomeric cleaning stick plus toothbrushing vs Toothbrushing alone
Gingivitis (gingival index) · Adults, 16 years and older (dentate) · 1 month
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
MD -0.01 [-0.19, 0.21]1 study · 12 participantsVery low
Wooden cleaning stick plus toothbrushing vs Toothbrushing alone
Periodontitis (probing pocket depth) · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
No included study assessed periodontitis as an outcome.0 studiesNo studies
Oral irrigation plus toothbrushing vs Flossing plus toothbrushing
Interproximal caries · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
No included study assessed caries as an outcome.0 studiesNo studies
Wooden cleaning stick plus toothbrushing vs Flossing plus toothbrushing
Interproximal caries · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
No included study assessed caries as an outcome.0 studiesNo studies
Flossing plus toothbrushing vs Toothbrushing alone
Periodontitis (probing pocket depth) · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
One study measured probing pocket depth but no data were reported (Graziani 2017).1 studyUngraded
Oral irrigation plus toothbrushing vs Flossing plus toothbrushing
Harms and adverse effects · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
Both studies reported that there were no adverse events in either study group.2 studiesUngraded
Wooden cleaning stick plus toothbrushing vs Flossing plus toothbrushing
Gingivitis (proportion of bleeding sites) · Adults, 16 years and older (dentate) · 3 months
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
MD 0.01 [-0.12, 0.14]1 study · 24 participantsVery low
Rubber/elastomeric cleaning stick plus toothbrushing vs Flossing plus toothbrushing
Gingivitis (proportion of bleeding sites) · Adults, 16 years and older (dentate) · 1 month
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
MD -0.03 [-0.08, 0.03]5 studies · 212 participantsLow
Interdental brushing plus toothbrushing vs Flossing plus toothbrushing
Harms and adverse effects · Adults, 16 years and older (dentate)
Home use of interdental cleaning devices, in addition to toothbrushing, for preventing and controlling… (2019) · Cochrane
Five studies reported there were no adverse events. Two studies reported on problems with the use of interdental brushes or floss, which sometimes caused soreness. (Six studies reported on adverse events; none…6 studiesUngraded