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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. Every word you type has to appear somewhere in the question, and the closest matches are ranked first.

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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
TT genotype of AMELX rs946252 vs CC genotype of AMELX rs946252
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Age group: Children
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 1.54 [0.61, 3.92]2 studiesUngraded
Tooth-coloured direct restorative materials (composite, compomer, giomer, RMGIC, HVGIC, open-sandwich) vs No comparator group (single-arm pooled success rate; materials/techniques contrasted via moderator analyses)
Marginal integrity success rate · Children with primary molars requiring proximal (Class II) restorations · 24 months, Trim-and-fill adjusted (publication-bias sensitivity)
Success rate of proximal tooth-coloured direct restorations in primary teeth at 24 months: a meta-analysis. (2020)
Proportion 0.881 [0.832, 0.916]32 (27 observed + 5 imputed) studiesUngraded
Intervention NR
Absence of recurrent caries success rate · Material type: Resin-modified glass ionomer cement (RMGIC)
Success rate of proximal tooth-coloured direct restorations in primary teeth at 24 months: a meta-analysis. (2020)
Proportion 0.954 [0.879, 0.983]6 studiesUngraded
GG genotype of ENAM rs3796704 vs AA genotype of ENAM rs3796704
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Overall
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 1.86 [0.96, 3.62]4 studies · 1107 participantsUngraded
No additional acid etching (self-etch adhesive alone) after Er,Cr:YSGG preparation vs Prior acid etching before self-etch adhesive after Er,Cr:YSGG preparation
Incidence of microleakage · Er,Cr:YSGG laser-prepared cavities restored with self-etch adhesive systems (in vitro) · Dentin margin
Does Er,Cr:YSGG reduce the microleakage of restorations when used for cavity preparation? A systematic… (2020)
RR 2.44 [1.38, 4.34]2 studiesUngraded
AG + GG genotype (G-allele carriers) of LTF rs1126478 vs AA genotype of LTF rs1126478
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Age group: Children
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 0.99 [0.81, 1.23]4 studiesUngraded
AG genotype of ENAM rs3796704 vs AA genotype of ENAM rs3796704
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Overall
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 1.27 [0.64, 2.52]4 studies · 1107 participantsUngraded
Intervention NR
Anatomic form success rate · Random assignment: No/Incorrect
Success rate of proximal tooth-coloured direct restorations in primary teeth at 24 months: a meta-analysis. (2020)
Proportion 0.895 [0.817, 0.942]14 studiesUngraded
Visual examination vs Reference standard: histology
Sensitivity · Extracted molar teeth of adults with resin composite approximal restorations (in vitro; secondary root caries;…
Tests to detect and inform the diagnosis of root caries (2020) · Cochrane
Sensitivity 0.75 [0.48, 0.93]1 studyVery low
GG genotype of ENAM rs1264848 vs AA genotype of ENAM rs1264848
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Age group: Children
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 0.58 [0.19, 1.82]4 studiesUngraded
Resin-modified glass ionomer fissure sealant vs Fluoride varnish
Progression of dentinal carious lesions into enamel or dentine · Children and adolescents from the general population, younger than 20 years of age at the start of the study · 1 year
Pit and fissure sealants versus fluoride varnishes for preventing dental decay in the permanent teeth of… (2020) · Cochrane
OR 0.18 [0.01, 4.27]1 study · 21 participantsUngraded
Intervention NR
Marginal integrity success rate · Random assignment: Correct
Success rate of proximal tooth-coloured direct restorations in primary teeth at 24 months: a meta-analysis. (2020)
Proportion 0.909 [0.837, 0.951]13 studiesUngraded
VistaProof (Durr Dental; blue fluorescence, 405 nm) vs Reference standard: histology, enhanced visual examination with or without radiographs, or excavation
Diagnostic accuracy (sensitivity and specificity) for detection of early enamel caries (D1 threshold) · Children or adults presenting asymptomatically or suspected of having enamel caries (in vivo/clinical studies);… · Up to 3 months between index test and reference standard (in vivo studies)
Fluorescence devices for the detection of dental caries (2020) · Cochrane
Analysed as a separate index test (coupled forest plot and SROC plot, Figure 24 / Figure 25; Appendix 5); no summary DOR or sensitivity/specificity point reported numerically in the text. 18 datasets, 2402 tooth sites.17 studiesUngraded
rs1126478 genotype distribution vs Caries-free control genotype distribution
Dental caries (by severity) · Human subjects stratified by dental caries severity and caries-free controls · Low caries (DMFT 1); Volckova et al. 2014
The association between genetic variants in lactotransferrin and dental caries: a meta- and gene-based… (2020)
OR 0.65 [0.47, 0.90]1 studyUngraded
Low birth weight (<2500 g) vs Normal birth weight (2500 g or more)
Early childhood caries (ECC) · Children aged 6 years or younger (preschool children) · Adjusted OR
Relationship between preterm, low birth weight and early childhood caries: a meta-analysis of the… (2020)
OR 1.05 [0.71, 1.57]2 studiesUngraded
Traditional bur cavity preparation vs Er,Cr:YSGG laser cavity preparation
Incidence of microleakage · Human teeth requiring cavity preparation and restoration (in vitro) · Dentin margin
Does Er,Cr:YSGG reduce the microleakage of restorations when used for cavity preparation? A systematic… (2020)
RR 1.26 [0.67, 2.38]6 studiesUngraded
Tooth-coloured direct restorative materials (composite, compomer, giomer, RMGIC, HVGIC, open-sandwich) vs No comparator group (single-arm pooled success rate; materials/techniques contrasted via moderator analyses)
Anatomic form success rate · Children with primary molars requiring proximal (Class II) restorations · 24 months
Success rate of proximal tooth-coloured direct restorations in primary teeth at 24 months: a meta-analysis. (2020)
Proportion 0.901 [0.845, 0.938]24 studiesUngraded
TT genotype of AMELX rs946252 vs CC genotype of AMELX rs946252
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Overall
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 1.27 [0.58, 2.75]3 studies · 298 participantsUngraded
Intervention NR
Anatomic form success rate · Use of cavity conditioner: No
Success rate of proximal tooth-coloured direct restorations in primary teeth at 24 months: a meta-analysis. (2020)
Proportion 0.908 [0.824, 0.954]13 studiesUngraded
CT genotype of AMELX rs17878486 vs CC genotype of AMELX rs17878486
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Age group: Adults
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 0.33 [0.01, 12.82]1 studyUngraded
T allele of ENAM rs3796703 vs C allele of ENAM rs3796703
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Overall
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 0.92 [0.24, 3.58]2 studies · 1152 participantsUngraded
TT genotype of AMELX rs946252 vs CC genotype of AMELX rs946252
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Control group: Caries-free
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 1.42 [0.54, 3.76]2 studiesUngraded
Intervention NR
Anatomic form success rate · Material type: High-viscosity glass ionomer cement (HVGIC)
Success rate of proximal tooth-coloured direct restorations in primary teeth at 24 months: a meta-analysis. (2020)
Proportion 0.759 [0.586, 0.875]6 studiesUngraded
Tooth-coloured direct restorative materials (composite, compomer, giomer, RMGIC, HVGIC, open-sandwich) vs No comparator group (single-arm pooled success rate; materials/techniques contrasted via moderator analyses)
Retention success rate · Children with primary molars requiring proximal (Class II) restorations · 24 months, Reporting bias: No
Success rate of proximal tooth-coloured direct restorations in primary teeth at 24 months: a meta-analysis. (2020)
Proportion 0.867 [0.779, 0.924]24 studiesUngraded
TT genotype of AMELX rs17878486 vs CC + CT genotype of AMELX rs17878486
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Ethnicity: Caucasian
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 6.17 [0.41, 92.05]2 studiesUngraded
GG genotype of ENAM rs3796704 vs AA genotype of ENAM rs3796704
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Control group: Caries-free
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 2.499 [1.19, 5.24]2 studiesUngraded
Intervention NR
Marginal integrity success rate · Study design: Noncontrolled trial
Success rate of proximal tooth-coloured direct restorations in primary teeth at 24 months: a meta-analysis. (2020)
Proportion 0.950 [0.863, 0.983]3 studiesUngraded
Vegetarian diet (any diet excluding all meat, poultry and fish) vs Nonvegetarian diet
Presence of dental erosion · General population (children and adults) assessed for dental hard-tissue health · Adults only, excluding Linkosalo & Markkanen 1985
Vegetarian diet and its possible influence on dental health: A systematic literature review. (2020)
OR 2.56 [1.77, 3.71]4 studiesUngraded
rs1126478 genotype distribution vs Caries-free control genotype distribution
Dental caries (by severity) · Human subjects stratified by dental caries severity and caries-free controls · Severe/high caries (DMFT 4 or more); Volckova et al. 2014
The association between genetic variants in lactotransferrin and dental caries: a meta- and gene-based… (2020)
OR 1.20 [0.94, 1.54]1 studyUngraded
CT genotype of AMELX rs6639060 vs CC genotype of AMELX rs6639060
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Age group: Adults
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 1.27 [0.49, 3.30]1 studyUngraded
Tooth-coloured direct restorative materials (composite, compomer, giomer, RMGIC, HVGIC, open-sandwich) vs No comparator group (single-arm pooled success rate; materials/techniques contrasted via moderator analyses)
Retention success rate · Children with primary molars requiring proximal (Class II) restorations · 24 months, Assessor blinding (triple-blind): Yes
Success rate of proximal tooth-coloured direct restorations in primary teeth at 24 months: a meta-analysis. (2020)
Proportion 0.805 [0.674, 0.892]16 studiesUngraded
CT + TT genotype (T-allele carriers) of AMELX rs6639060 vs CC genotype of AMELX rs6639060
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Overall
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 1.14 [0.56, 2.29]2 studies · 301 participantsUngraded
Vegetarian diet (any diet excluding all meat, poultry and fish) vs Nonvegetarian diet
Noncarious/cervical lesions and tooth wear (measures other than pooled dental erosion) · General population (children and adults) assessed for dental hard-tissue health
Vegetarian diet and its possible influence on dental health: A systematic literature review. (2020)
Eleven studies reported on NCCL using six definitions (presence of NCCL, presence of dental erosion, presence and severity of tooth wear, dental abrasion, cervical buccal defects); the six reporting presence of dental…NRUngraded
Fluoride varnish applied biannually vs Fissure sealant (resin-based or glass ionomer)
Caries incidence of first permanent molars (FPMs) · Generally healthy children aged 6 to 9 years with at least one fully erupted first permanent molar with deep fissures… · 2 to 3 years, Sensitivity analysis excluding Bravo 1996 (high risk of bias)
Comparison between Fissure Sealant and Fluoride Varnish on Caries Prevention for First Permanent Molars: a… (2020)
RR 1.05 [0.91, 1.22]5 studiesUngraded
AG + GG genotype (G-allele carriers) of ENAM rs3796704 vs AA genotype of ENAM rs3796704
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Ethnicity: Mixed
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 0.24 [0.03, 2.17]1 studyUngraded
Intervention NR
Anatomic form success rate · Reporting bias: No
Success rate of proximal tooth-coloured direct restorations in primary teeth at 24 months: a meta-analysis. (2020)
Proportion 0.892 [0.829, 0.932]21 studiesUngraded
Bleaching gel with added remineralising agent (fluoride, calcium, or CPP-ACP) vs Bleaching alone (no remineralising agent)
Whitening (bleaching) efficacy · Demineralised / white-spot-lesion enamel (in vitro specimens)
Is Bleaching Effective in Managing Post-orthodontic White-spot Lesions? A Systematic Review. (2020)
Low-quality in vitro data indicated that the presence of fluoride or any other remineralising agent did not impair the whitening effect.3 studiesUngraded
Radiograph and visual examination in combination vs Reference standard: histology
Specificity · Extracted molar teeth of adults with resin composite approximal restorations (in vitro; secondary root caries;…
Tests to detect and inform the diagnosis of root caries (2020) · Cochrane
Specificity 0.54 [0.25, 0.81]1 studyVery low
GG genotype of LTF rs1126478 vs AA genotype of LTF rs1126478
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Ethnicity: Asian
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 0.97 [0.73, 1.29]2 studiesUngraded
DIAGNOdent pen (KaVo; red laser fluorescence, 655 nm) vs Reference standard: histology, enhanced visual examination with or without radiographs, or excavation
Diagnostic accuracy (sensitivity and specificity) for detection of early enamel caries (D1 threshold) · Children or adults presenting asymptomatically or suspected of having enamel caries (in vivo/clinical studies);… · Up to 3 months between index test and reference standard (in vivo studies)
Fluorescence devices for the detection of dental caries (2020) · Cochrane
Analysed as a separate index test (coupled forest plot and SROC plot, Figure 22 / Figure 23; Appendix 5); no summary DOR or sensitivity/specificity point reported numerically in the text. 34 datasets, 6842 tooth sites.32 studiesUngraded
TT genotype of AMELX rs17878486 vs CC genotype of AMELX rs17878486
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Control group: Caries-free
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 5.12 [0.09, 278.85]2 studiesUngraded
Fluoride varnish applied biannually vs Fissure sealant (resin-based or glass ionomer)
Caries incidence (proportion of enrolled children developing dentin caries, ICDAS 4-6) · Generally healthy children aged 6 to 9 years with at least one fully erupted first permanent molar with deep fissures… · 2 to 3 years
Comparison between Fissure Sealant and Fluoride Varnish on Caries Prevention for First Permanent Molars: a… (2020)
RR 1.12 [0.60, 2.09]2 studies · 1072 participantsUngraded
AMELX rs17878486 CT genotype vs CC genotype
Dental caries susceptibility · Ethnicity: Asian (n=1) individuals with caries/high caries and controls · Ethnicity: Asian (n=1)
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 0.33 [0.01, 12.82]1 studyUngraded
DIAGNOdent (KaVo; red laser fluorescence, 655 nm) vs Reference standard: histology, enhanced visual examination with or without radiographs, or excavation
Diagnostic accuracy (sensitivity and specificity) for detection of early enamel caries (D1 threshold) · Children or adults presenting asymptomatically or suspected of having enamel caries (in vivo/clinical studies);… · Up to 3 months between index test and reference standard (in vivo studies)
Fluorescence devices for the detection of dental caries (2020) · Cochrane
Analysed as a separate index test (coupled forest plot and SROC plot, Figure 22 / Figure 23; Appendix 5); no summary DOR or sensitivity/specificity point reported numerically in the text. 46 datasets, 7316 tooth sites.45 studiesUngraded
CT + TT genotype (T-allele carriers) of AMELX rs2106416 vs CC genotype of AMELX rs2106416
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Age group: Children
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 0.59 [0.15, 2.31]3 studiesUngraded
Tooth bleaching (carbamide or hydrogen peroxide; home and/or in-office) vs No bleaching (untreated control)
Colour change / camouflage of white spot lesions (reduction of colour disparity between carious and sound enamel) · Permanent teeth with post-orthodontic white spot lesions (orthodontic patients and in vitro enamel specimens)
Is Bleaching Effective in Managing Post-orthodontic White-spot Lesions? A Systematic Review. (2020)
The results showed that bleaching of WSL can diminish colour disparities between carious and non-affected areas, but the certainty of the evidence was very low.3 studiesUngraded
Laser/light-activated bleaching vs Conventional (non-laser) bleaching with hydrogen or carbamide peroxide
Enamel microhardness / caries susceptibility · Permanent teeth enamel (in vitro specimens)
Is Bleaching Effective in Managing Post-orthodontic White-spot Lesions? A Systematic Review. (2020)
In two studies having high risk of bias, laser-activated bleaching did not seem to affect enamel microhardness or caries risk when compared to conventional bleaching with hydrogen or carbamide peroxide.2 studiesUngraded
AG genotype of LTF rs1126478 vs AA genotype of LTF rs1126478
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Ethnicity: Caucasian
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 1.02 [0.53, 1.97]2 studiesUngraded
CT + TT genotype (T-allele carriers) of AMELX rs17878486 vs CC genotype of AMELX rs17878486
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Control group: Caries-free
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 2.03 [0.10, 42.44]2 studiesUngraded
G allele of LTF rs1126478 vs A allele of LTF rs1126478
Dental caries susceptibility · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls) · Overall
Association of LTF, ENAM, and AMELX polymorphisms with dental caries susceptibility: a meta-analysis. (2020)
OR 0.98 [0.87, 1.10]4 studies · 2662 participantsUngraded