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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)

82 questions in 16 reviews · cluster CL0286

current versions
No studies 34 · 41.5%Ungraded 33 · 40.2%Very low 15 · 18.3%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

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.

Intervention categories, outcome domains and clusters are a proposed key pending human validation. Clear all filters

QuestionEffectEvidenceStatus / GRADE
Sodium hypochlorite 5% vs Sodium hypochlorite 5% with proteolytic enzyme
Proportion of participants with moderate to severe pain up to 6 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
RR 1.5 [0.4, 5.0]1 study · 166 participantsUngraded
Sodium hypochlorite (NaOCl), 2.5% to 5.25% vs Chlorhexidine, 0.2% to 2% (solution or gel)
Mean change in health-related quality of life or participant-expressed satisfaction with the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 1.3% with MTAD final rinse vs Sodium hypochlorite 1.3% with normal saline final rinse
Mean change in health-related quality of life or participant-expressed satisfaction with the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5% vs Sodium hypochlorite 5% with proteolytic enzyme
Proportion of participants or samples with positive bacterial growth culture, up to 72 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% vs Sodium hypochlorite 5.25% with hydrogen peroxide 3%
Mean change in health-related quality of life or participant-expressed satisfaction with the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% vs Sodium hypochlorite 5.25% with hydrogen peroxide 3%
Proportion of participants with moderate to severe pain up to 6 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% with EDTA 17% vs Sodium hypochlorite 1.3% with MTAD
Proportion of participants with moderate to severe pain up to 6 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% with hydrogen peroxide 3% vs Normal saline
Proportion of participants with moderate to severe pain up to 6 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite (NaOCl), 2.5% to 5.25% vs Chlorhexidine, 0.2% to 2% (solution or gel)
Proportion of participants with new or worsening signs/symptoms of inflammation requiring a revisit, up to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% with hydrogen peroxide 3% vs Normal saline
Proportion of participants with moderate to severe pain 72 hours to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
RR 0.65 [0.2, 2.0]1 study · 161 participantsUngraded
Sodium hypochlorite 5.25% with hydrogen peroxide 3% vs Normal saline
Proportion of participants with new or worsening signs/symptoms of inflammation requiring a revisit, up to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% vs Normal saline
Mean change in health-related quality of life or participant-expressed satisfaction with the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% with EDTA 17% vs Sodium hypochlorite 1.3% with MTAD
Proportion of participants with moderate to severe pain 72 hours to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
Only a graph plot of 'average pain' over the 7-day postoperative period in each group was provided; this could not be transformed into usable data for the review's prespecified outcomes.1 studyUngraded
Sodium hypochlorite 5.25% vs Sodium hypochlorite 5.25% with hydrogen peroxide 3%
Proportion of participants or samples with positive bacterial growth culture, up to 72 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 1.3% with MTAD final rinse vs Sodium hypochlorite 1.3% with normal saline final rinse
Proportion of participants with moderate to severe pain 72 hours to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% with EDTA 17% vs Sodium hypochlorite 1.3% with MTAD
Proportion of participants or samples with positive bacterial growth culture, up to 72 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% with hydrogen peroxide 3% vs Normal saline
Proportion of participants or samples with positive bacterial growth culture, up to 72 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5% (also 2.5%) vs Sodium hypochlorite 1%
Mean change in health-related quality of life or participant-expressed satisfaction with the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5% (also 2.5%) vs Sodium hypochlorite 1%
Proportion of participants or samples with positive bacterial growth culture, up to 72 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
RR 0.22 [0.051, 0.91]1 study · 111 participantsUngraded
Sodium hypochlorite (NaOCl), 2.5% to 5.25% vs Chlorhexidine, 0.2% to 2% (solution or gel)
Proportion of participants with moderate to severe pain 72 hours to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% vs Normal saline
Proportion of participants with new or worsening signs/symptoms of inflammation requiring a revisit, up to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5% vs Sodium hypochlorite 5% with proteolytic enzyme
Mean change in health-related quality of life or participant-expressed satisfaction with the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 1.3% with MTAD final rinse vs Sodium hypochlorite 1.3% with normal saline final rinse
Proportion of participants or samples with positive bacterial growth culture, up to 72 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
Vital bacterial counts decreased after the active intervention (MTAD) but live bacteria were present in all of the samples; no further usable data reported.1 studyUngraded
Sodium hypochlorite 5% (also 2.5%) vs Sodium hypochlorite 1%
Proportion of participants with moderate to severe pain up to 6 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% vs Sodium hypochlorite 5.25% with hydrogen peroxide 3%
Proportion of participants with moderate to severe pain 72 hours to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
RR 1.22 [0.4, 4.2]1 study · 167 participantsUngraded
Physostigmine gel (1.8 mg) vs Placebo gel
Xerostomia (VAS mouth dryness, AUC over 180 min) · Adults seeking treatment for the symptom of dry mouth (xerostomia) due to any cause (e.g. medication, Sjogren's…
Interventions for the management of dry mouth: topical therapies (2011) · Cochrane
Khosravani 2009 (crossover, low risk of bias, n=17): reduction in oral dryness (VAS area-under-curve over first 180 minutes) after 1.8 mg physostigmine gel; reported graphically, not usable for meta-analysis.1 study · 17 participantsUngraded
Vertical distraction osteogenesis vs Autogenous onlay bone graft (mandibular ramus)
Augmentation procedure (partial) failure · Patients with vertically deficient posterior/anterior mandibular ridges needing implants · Up to 3 years post-loading
Interventions for replacing missing teeth: horizontal and vertical bone augmentation techniques for dental… (2009) · Cochrane
OR 0.88 [0.05, 16.74]1 study · 17 participantsUngraded
Vertical GBR with non-resorbable titanium-reinforced barriers vs Vertical GBR with resorbable barriers supported by osteosynthesis plates
Augmentation procedure failure · Patients with vertically deficient posterior/anterior mandibular ridges needing implants · About 4.5 months
Interventions for replacing missing teeth: horizontal and vertical bone augmentation techniques for dental… (2009) · Cochrane
OR 2.22 [0.17, 28.86]1 study · 22 participantsUngraded
Occlusal adjustment as an adjunct to surgical periodontal therapy vs Surgical periodontal therapy alone (no occlusal adjustment)
Adverse effects (e.g. thermal sensitivity, over-eruption, TMJ symptoms, poor aesthetics, reduced oral hygiene) · Adults (aged 18 years or older) with a clinical diagnosis of (chronic) periodontitis · Minimum 3 months (planned)
Occlusal interventions for periodontitis in adults (2008) · Cochrane
no estimate extracted0 studiesNo studies
Occlusal adjustment as an adjunct to non-surgical periodontal therapy vs Non-surgical periodontal therapy alone (no occlusal adjustment)
Adverse effects (e.g. thermal sensitivity, over-eruption, TMJ symptoms, poor aesthetics, reduced oral hygiene) · Adults (aged 18 years or older) with a clinical diagnosis of (chronic) periodontitis · Minimum 3 months (planned)
Occlusal interventions for periodontitis in adults (2008) · Cochrane
no estimate extracted0 studiesNo studies
Guided tissue regeneration (GTR) with barrier membrane (resorbable or non-resorbable) vs Open flap debridement (access flap surgery)
Treatment / surgical procedure time · Patients with chronic periodontitis (aged 21 years or older) with periodontal infra-bony defects; furcation-involved…
Guided tissue regeneration for periodontal infra-bony defects (2006) · Cochrane
MD 23.91 studyUngraded
Ceramic inlays (all types) vs Gold inlay
Postoperative sensitivity/pain · Adults who require restorative treatment in posterior teeth · 1 week
Ceramic inlays for restoring posterior teeth (2003) · Cochrane
Postoperative sensitivity was evaluated 1 week after placement. No teeth with ceramic inlays were found to have postoperative sensitivity, while one tooth with gold inlay presented sensitivity, which lasted more than 2…1 study · 20 participantsUngraded