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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)

5,762 questions in 263 reviews · Dental caries

current versions
No studies 321 · 5.6%Ungraded 4,450 · 77.2%Very low 455 · 7.9%Low 297 · 5.2%Moderate 200 · 3.5%High 39 · 0.7%

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
Slow-release fluoride device (fluoride glass beads) vs Placebo or usual care (control)
Use of healthcare resources (cost effectiveness, time taken to fit, number of dental visits) · Children with high risk of dental decay
Slow‐release fluoride devices for the control of dental decay (2018) · Cochrane
The study reported no data on use of healthcare resources0 studiesNo studies
Mineral trioxide aggregate (MTA) vs Calcium hydroxide + sodium hypochlorite (NaOCl)
Clinical failure · Children with extensive decay involving the dental pulp in primary teeth · 6 and 12 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
No clinical failure in any participant (Akcay 2014); not estimable1 study · 62 participantsUngraded
Low polymerization shrinkage resin composite (silorane, ormocer, bulk-fill or other modified-monomer composite) vs Conventional methacrylate-based resin composite
Marginal adaptation (clinically detectable deterioration) · People with permanent posterior teeth restored with class I or II direct restorations · 12 months
Meta-analysis of the clinical behavior of posterior direct resin restorations: Low polymerization shrinkage… (2018)
OR 1.77 [1.25, 2.50]15 studies · 2280 participantsUngraded
Human Development Index vs Not applicable
Mean DMFT · Adult participants in HDI-stratified study populations
Socioeconomic Factors and Caries in People between 19 and 60 Years of Age: An Update of a Systematic Review… (2018)
Mean DMFT 11.49 [9.96, 13.03]25 studiesUngraded
Radiographic caries detection (bitewing radiography) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Sensitivity for detecting all (initial and advanced) occlusal caries · Occlusal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Egypt
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Sensitivity 39.7 [25, 56]11 studiesUngraded
Visual caries detection (ICDAS visual/visual-tactile inspection) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Positive LR for detecting advanced occlusal caries · Occlusal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Egypt
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Positive LR 5.0 [4.3, 5.8]55 studiesUngraded
Mineral trioxide aggregate (MTA) vs 3Mix (ciprofloxacin + metronidazole + minocycline)
Radiological failure · Children with extensive decay involving the dental pulp in primary teeth · 12 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
No radiological failure in any participant (Aminabadi 2016); not estimable1 study · 160 participantsUngraded
Medium income vs High income
Prevalence of fair/poor self-rated oral health · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States · 2009, New Zealand
Socioeconomic status, oral health and dental disease in Australia, Canada, New Zealand and the United States. (2018)
AD 11.9 [3.7, 20.1]1 study · 2041 participantsUngraded
Radiographic caries detection (bitewing radiography) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Sensitivity for detecting advanced proximal caries · Proximal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Germany
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Sensitivity 44.4 [38, 51]22 studiesUngraded
Visual caries detection (ICDAS visual/visual-tactile inspection) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
NPV for detecting advanced occlusal caries · Occlusal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Egypt
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
NPV 97.555 studiesUngraded
Visual caries detection (ICDAS visual/visual-tactile inspection) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Sensitivity for detecting advanced occlusal caries · Occlusal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Egypt
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Sensitivity 75.1 [70, 81]55 studiesUngraded
Visual caries detection (ICDAS visual/visual-tactile inspection) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Positive LR for detecting advanced occlusal caries · Occlusal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Germany
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Positive LR 12.5 [9.2, 16.9]50 studiesUngraded
Non-rinse conditioner + acetone-based total-etch adhesive vs Calcium hydroxide (CH)
Clinical failure · Children with extensive decay involving the dental pulp in primary teeth · 6 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
No clinical failure in any participant (Demir 2007); not estimable1 study · 40 participantsVery low
Medium income vs High income
Mean number of decayed teeth (mean DT) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States · 2004-2006, Australia
Socioeconomic status, oral health and dental disease in Australia, Canada, New Zealand and the United States. (2018)
AD 0.2 [0.1, 0.3]1 study · 5073 participantsUngraded
Mineral trioxide aggregate (MTA) vs Calcium hydroxide + sodium hypochlorite (NaOCl)
Radiological failure · Children with extensive decay involving the dental pulp in primary teeth · 12 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 0.09 [0.01, 1.58]1 study · 62 participantsUngraded
Electrosurgery vs Calcium-enriched mixture (CEM)
Radiological failure · Children with extensive decay involving the dental pulp in primary teeth · 24 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 0.50 [0.10, 2.61]1 study · 102 participantsUngraded
Radiographic caries detection (bitewing radiography) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Sensitivity for detecting advanced occlusal caries · Occlusal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Germany
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Sensitivity 50.8 [43, 59]36 studiesUngraded
Early extraction of a compromised first permanent molar vs Teeth in the same arch/patient with the first permanent molar present
Caries and/or fillings in adjacent teeth · Children aged 5 to 15 years with a compromised first permanent molar · Proximal surfaces (extraction vs FPM present; fewer decayed/filled with extraction)
Consequences of early extraction of compromised first permanent molar: a systematic review. (2018)
OR 0.48 [0.33, 0.69]1 studyUngraded
Slow-release fluoride device (fluoride glass beads) vs Placebo or usual care (control)
Participant satisfaction · Children with high risk of dental decay
Slow‐release fluoride devices for the control of dental decay (2018) · Cochrane
No RCT evidence found0 studiesNo studies
Medium income vs High income
Mean number of decayed teeth (mean DT) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States · 2007-2009, Canada
Socioeconomic status, oral health and dental disease in Australia, Canada, New Zealand and the United States. (2018)
AD 0.4 [0.2, 0.5]1 study · 3278 participantsUngraded
Diode laser vs Formocresol (FC)
Clinical failure · Children with extensive decay involving the dental pulp in primary teeth · 12 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 0.33 [0.01, 7.95]1 study · 80 participantsUngraded
Mineral trioxide aggregate (MTA) vs Simvastatin
Clinical failure · Children with extensive decay involving the dental pulp in primary teeth · 12 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 0.17 [0.04, 0.70]1 study · 160 participantsLow
Conventional restorative treatment with resin composite (CRT-RC) vs Sealing (resin sealant over caries)
Caries lesion arrestment · Children with dentin caries lesions in the outer half of dentin on occlusal surfaces of primary teeth · Mixed follow-up (6 months to 1.5 years; pooled)
Scientific evidence for the management of dentin caries lesions in pediatric dentistry: A systematic review… (2018)
RR 1.02 [0.96, 1.08]2 studies · 66 participantsLow
Radiographic caries detection (bitewing radiography) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Sensitivity for detecting all (initial and advanced) proximal caries · Proximal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Germany
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Sensitivity 40.5 [33, 48]34 studiesUngraded
Self-etch adhesive + acetone-based total-etch adhesive vs Non-rinse conditioner + acetone-based total-etch adhesive
Clinical failure · Children with extensive decay involving the dental pulp in primary teeth · 6, 12 and 24 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 3.00 [0.13, 69.52]1 study · 40 participantsVery low
Radiographic caries detection (bitewing radiography) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Specificity for detecting all (initial and advanced) proximal caries · Proximal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Egypt
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Specificity 92.5 [91, 94]31 studiesUngraded
Populations with a low level of schooling (>=33.60% of the population with low schooling) vs Populations with a higher level of schooling (<33.60% of the population with low schooling)
Dental caries experience (DMFT) · Adults aged 19-60 years · Higher schooling (<33.60% with low schooling)
Socioeconomic Factors and Caries in People between 19 and 60 Years of Age: An Update of a Systematic Review… (2018)
MEAN 11.95 [7.26, 16.64]6 studiesUngraded
Populations with low socioeconomic status (>=22.4% of the population with low SES) vs Populations with higher socioeconomic status (<22.4% of the population with low SES)
Dental caries experience (DMFT) · Adults aged 19-60 years · Higher SES (<22.4% with low SES)
Socioeconomic Factors and Caries in People between 19 and 60 Years of Age: An Update of a Systematic Review… (2018)
MEAN 5.50 [-1.04, 12.03]3 studiesUngraded
Ferric sulphate (FS) vs Zinc oxide and eugenol (ZOE)
Clinical failure · Children with extensive decay involving the dental pulp in primary teeth · 24 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 1.20 [0.42, 3.43]1 study · 50 participantsUngraded
Fluorides combined with CPP-ACP vs Fluorides alone (monotherapy)
Total lesion area divided by total surface area (visual) · Patients with early caries lesions in permanent teeth (non-fluoridated water area) · Post-treatment (8-24 weeks), Location of lesions: smooth surfaces
Efficacy of fluorides and CPP-ACP vs fluorides monotherapy on early caries lesions: A systematic review and… (2018)
MD 4.37 [-0.51, 9.26]2 studiesUngraded
Medium income vs High income
Prevalence of fair/poor self-rated oral health · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States · 2004-2006, Australia
Socioeconomic status, oral health and dental disease in Australia, Canada, New Zealand and the United States. (2018)
AD 3.1 [0.9, 5.2]1 study · 5073 participantsUngraded
Low income vs High income
Prevalence of untreated decay (% DT > 0) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States · 2009, New Zealand
Socioeconomic status, oral health and dental disease in Australia, Canada, New Zealand and the United States. (2018)
AD 17.46 [8.00, 26.92]1 study · 2041 participantsUngraded
Low income vs High income
Prevalence of fair/poor self-rated oral health · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States · 2007-2009, Canada
Socioeconomic status, oral health and dental disease in Australia, Canada, New Zealand and the United States. (2018)
AD 16.91 [8.91, 24.91]1 study · 3278 participantsUngraded
Secondary education vs University education
Prevalence of fair/poor self-rated oral health · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States · 2009, New Zealand
Socioeconomic status, oral health and dental disease in Australia, Canada, New Zealand and the United States. (2018)
AD 6.7 [-1.3, 14.7]1 study · 2041 participantsUngraded
Visual caries detection (ICDAS visual/visual-tactile inspection) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Specificity for detecting all (initial and advanced) occlusal caries · Occlusal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Egypt
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Specificity 77.0 [73, 81]51 studiesUngraded
Mineral trioxide aggregate (MTA) vs Ferric sulphate (FS)
Clinical failure · Children with extensive decay involving the dental pulp in primary teeth · 24 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 0.52 [0.20, 1.39]3 studies · 130 participantsVery low
Radiographic caries detection (bitewing radiography) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Negative LR for detecting advanced proximal caries · Proximal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Germany
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Negative LR 0.58 [0.52, 0.65]22 studiesUngraded
Low-level laser therapy (LLLT) + calcium hydroxide vs Formocresol (FC)
Clinical failure · Children with extensive decay involving the dental pulp in primary teeth · 6 and 12 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
No clinical failure in any participant (Fernandes 2015); not estimable1 study · 30 participantsUngraded
Populations with low socioeconomic status (>=22.4% of the population with low SES) vs Populations with higher socioeconomic status (<22.4% of the population with low SES)
Association with dental caries experience (DMFT) by random-effects meta-regression · Adults aged 19-60 years · Adjusted (Model 2)
Socioeconomic Factors and Caries in People between 19 and 60 Years of Age: An Update of a Systematic Review… (2018)
Meta-regression coefficient 10.35391NRUngraded
Calcium hydroxide (CH) vs Mineral trioxide aggregate (MTA) + sodium hypochlorite (NaOCl)
Radiological failure · Children with extensive decay involving the dental pulp in primary teeth · 12 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 8.00 [1.06, 60.21]1 study · 62 participantsUngraded
Sodium hypochlorite (NaOCl) vs 1:5 diluted formocresol (FC)
Clinical failure · Children with extensive decay involving the dental pulp in primary teeth · 24 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 3.00 [0.13, 70.30]2 studies · 150 participantsUngraded
Artesunate vs Quinine
Death · Patients with severe malaria · Network meta-regression covariate: average age (years)
Graphs of study contributions and covariate distributions for network meta-regression. (2018)
no estimate extractedNRUngraded
Mineral trioxide aggregate (MTA) vs Enamel matrix derivative (EMD)
Clinical failure · Children with extensive decay involving the dental pulp in primary teeth · 6, 12 and 24 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 0.14 [0.01, 2.67]1 study · 70 participantsUngraded
Radiographic caries detection (bitewing radiography) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Specificity for detecting advanced proximal caries · Proximal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Germany
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Specificity 95.5 [94, 97]22 studiesUngraded
Radiographic caries detection (bitewing radiography) vs Reference standard (histological validation or cavity/lesion opening; advanced = cavitated/dentin-involved lesions, all = enamel-confined initial lesions also counted)
Positive LR for detecting all (initial and advanced) proximal caries · Proximal surfaces of permanent molars (demonstrated in 12-14 year-olds; underlying diagnostic accuracy studies, mostly… · Tailored to Egypt
Visual and radiographic caries detection: a tailored meta-analysis for two different settings, Egypt and… (2018)
Positive LR 5.34 [4.2, 6.8]31 studiesUngraded
Electrofulguration + calcium hydroxide (CH) vs Electrofulguration + zinc oxide and eugenol (ZOE)
Radiological failure · Children with extensive decay involving the dental pulp in primary teeth · 6 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 0.94 [0.47, 1.88]1 study · 47 participantsUngraded
Erbium:YAG laser vs Formocresol (FC)
Radiological failure · Children with extensive decay involving the dental pulp in primary teeth · 24 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 1.06 [0.28, 4.01]1 study · 97 participantsUngraded
Low income vs High income
Mean number of decayed teeth (mean DT) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States · 2003-2004, United States
Socioeconomic status, oral health and dental disease in Australia, Canada, New Zealand and the United States. (2018)
AD 0.22 [0.08, 0.35]1 study · 4568 participantsUngraded
Zinc oxide and eugenol (ZOE) vs Formocresol (FC)
Clinical failure · Children with extensive decay involving the dental pulp in primary teeth · 24 months
Pulp treatment for extensive decay in primary teeth (2018) · Cochrane
RR 0.83 [0.29, 2.38]1 study · 50 participantsUngraded
Low socioeconomic status (>22.4% of the population) vs Not applicable
Mean DMFT · Adult participants in 25 meta-regression studies · Model 2 adjusted
Socioeconomic Factors and Caries in People between 19 and 60 Years of Age: An Update of a Systematic Review… (2018)
Meta-regression coefficient 10.353917 studiesUngraded