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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)

515 questions in 19 reviews · cluster CL0076

current versions
No studies 19 · 3.7%Ungraded 449 · 87.2%Very low 17 · 3.3%Low 23 · 4.5%Moderate 7 · 1.4%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
Transillumination and OCT vs Reference standard (histology, operative excavation, or enhanced visual examination)
Specificity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 2: network meta-analysis (all studies evaluating >=2 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Specificity 0.82 [0.68, 0.91]64 studies · 24567 participantsLow
Fluorescence-based devices vs Reference standard (histology, operative excavation, or enhanced visual examination)
Specificity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 1: fully within-person comparison (studies evaluating >=3 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Specificity 0.88 [0.78, 0.94]19 studies · 2849 participantsUngraded
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Caries detection accuracy in unrestored molars and premolars · Dental images of human beings · Duong et al., 2021; support vector machine
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 92.371 study · 620 participantsUngraded
Visual or visual-tactile classification (e.g., ICDAS, ERK) vs Reference standard (histology, operative excavation, or enhanced visual examination)
Specificity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 2: network meta-analysis (all studies evaluating >=2 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Specificity 0.81 [0.73, 0.87]64 studies · 24567 participantsLow
Fluorescence-based devices vs Reference standard (histology, operative excavation, or enhanced visual examination)
Sensitivity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 2: network meta-analysis (all studies evaluating >=2 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Sensitivity 0.76 [0.68, 0.82]64 studies · 24567 participantsLow
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Proximal caries detection accuracy · Dental images of human beings · Casalegno et al., 2018; CNN
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 85.61 study · 217 participantsUngraded
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Occlusal caries detection accuracy · Dental images of human beings · Moutselos et al., 2019; MASK R-CNN; worst class
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 66.71 study · 88 participantsUngraded
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Dental caries detection accuracy · Dental images of human beings · Mayank et al., 2017; F-CNN
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 701 study · 3000 participantsUngraded
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Premolar caries detection accuracy · Dental images of human beings · Lee et al., 2018; CNN
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 881 study · 3000 participantsUngraded
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Proximal caries detection accuracy · Dental images of human beings · Devito et al., 2008; hidden-layer perceptron with backpropagation
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 88.41 study · 160 participantsUngraded
Visual or visual-tactile classification (e.g., ICDAS, ERK) vs Reference standard (histology, operative excavation, or enhanced visual examination)
Sensitivity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 2: network meta-analysis (all studies evaluating >=2 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Sensitivity 0.83 [0.77, 0.87]64 studies · 24567 participantsLow
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Dental caries detection accuracy · Dental images of human beings · Zanella-Calzada et al., 2018; ANN
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 691 study · 189 participantsUngraded
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Molar and premolar caries detection accuracy · Dental images of human beings · Lee et al., 2018; CNN
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 821 study · 3000 participantsUngraded
Electrical conductance or impedance vs Reference standard (histology, operative excavation, or enhanced visual examination)
Sensitivity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 2: network meta-analysis (all studies evaluating >=2 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Sensitivity 0.83 [0.66, 0.92]64 studies · 24567 participantsLow
Machine-learning algorithms (deep learning: CNN/FCNN, ANN, backpropagation neural network, SVM, ADA-NN, Mask R-CNN) applied as an index test to detect dental caries vs Different machine-learning algorithms compared with one another / against the reference caries diagnosis
Diagnostic accuracy for root caries detection · Dental radiographic/intraoral images of human teeth (X-ray and photographic) · Root caries
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 97.11 studyUngraded
Fluorescence-based devices vs Reference standard (histology, operative excavation, or enhanced visual examination)
Sensitivity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 1: fully within-person comparison (studies evaluating >=3 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Sensitivity 0.71 [0.59, 0.81]19 studies · 2849 participantsUngraded
Imaging (analog or digital radiographs) vs Reference standard (histology, operative excavation, or enhanced visual examination)
Specificity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 2: network meta-analysis (all studies evaluating >=2 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Specificity 0.89 [0.83, 0.93]64 studies · 24567 participantsLow
Imaging (analog or digital radiographs) vs Reference standard (histology, operative excavation, or enhanced visual examination)
Sensitivity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 1: fully within-person comparison (studies evaluating >=3 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Sensitivity 0.48 [0.35, 0.62]19 studies · 2849 participantsUngraded
Transillumination and OCT vs Reference standard (histology, operative excavation, or enhanced visual examination)
Sensitivity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 2: network meta-analysis (all studies evaluating >=2 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Sensitivity 0.76 [0.63, 0.86]64 studies · 24567 participantsLow
Fluorescence-based devices vs Reference standard (histology, operative excavation, or enhanced visual examination)
Specificity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 2: network meta-analysis (all studies evaluating >=2 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Specificity 0.83 [0.75, 0.89]64 studies · 24567 participantsLow
Visual or visual-tactile classification (e.g., ICDAS, ERK) vs Reference standard (histology, operative excavation, or enhanced visual examination)
Specificity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 1: fully within-person comparison (studies evaluating >=3 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Specificity 0.85 [0.74, 0.93]19 studies · 2849 participantsUngraded
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Dental caries detection accuracy · Dental images of human beings · Geetha et al., 2020; backpropagation
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 97.11 study · 105 participantsUngraded
Electrical conductance or impedance vs Reference standard (histology, operative excavation, or enhanced visual examination)
Specificity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 2: network meta-analysis (all studies evaluating >=2 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Specificity 0.72 [0.44, 0.89]64 studies · 24567 participantsLow
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Molar caries detection accuracy · Dental images of human beings · Lee et al., 2018; CNN
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 891 study · 3000 participantsUngraded
Imaging (analog or digital radiographs) vs Reference standard (histology, operative excavation, or enhanced visual examination)
Sensitivity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 2: network meta-analysis (all studies evaluating >=2 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Sensitivity 0.50 [0.40, 0.59]64 studies · 24567 participantsLow
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Occlusal caries detection accuracy · Dental images of human beings · Casalegno et al., 2018; CNN
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 83.61 study · 217 participantsUngraded
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Occlusal caries detection accuracy · Dental images of human beings · Moutselos et al., 2019; MASK R-CNN; most common class
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 88.91 study · 88 participantsUngraded
Machine-learning algorithms for dental caries detection vs Different machine-learning algorithms for caries prediction
Occlusal caries detection accuracy · Dental images of human beings · Moutselos et al., 2019; MASK R-CNN; center pixel class
Uses of Different Machine Learning Algorithms for Diagnosis of Dental Caries. (2022)
Accuracy 77.81 study · 88 participantsUngraded
Imaging (analog or digital radiographs) vs Reference standard (histology, operative excavation, or enhanced visual examination)
Specificity for detecting enamel caries · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies) · Analysis 1: fully within-person comparison (studies evaluating >=3 index tests)
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2022)
Specificity 0.92 [0.84, 0.96]19 studies · 2849 participantsUngraded
Oral cytology (e.g. OralCDx brush biopsy, CytID) vs Reference standard: examination and clinical evaluation by a physician/clinician with specialist knowledge or training (long-term follow-up accepted for those screened negative)
Outcome NR · Apparently healthy adults not reporting symptoms of OPMD or OSCC, attending an organised screening or surveillance…
Clinical assessment for the detection of oral cavity cancer and potentially malignant disorders in… (2021) · Cochrane
Oral cytology (e.g. brush biopsy) was added to the list of eligible index tests in this update; no eligible studies evaluated it (evidence gap).0 studiesNo studies
Conventional bitewing radiography, F-speed film vs Histological validation of dental tissues (gold standard)
Diagnostic accuracy for proximal caries detection (caries detection level) · Extracted permanent posterior teeth with proximal surfaces (in vitro) · Caries detection level
Systematic review and meta-analysis of diagnostic studies of proximal surface caries. (2021)
AUC 0.728 studiesUngraded
Visual or visual-tactile classification systems (any system: ICDAS, ERK, Nyvad, Downer, Lussi, UniViSS, or unspecified) vs Reference standard (histology, excavation, radiographs/microCT, or tooth separation)
Specificity for detection of enamel caries · Asymptomatic children or adults presenting for clinical examination (in vivo studies), or extracted teeth of children… · Up to 3 months between index test and reference standard (in vivo studies), Non-histology reference standard (excavation, radiographs, separation)
Visual or visual‐tactile examination to detect and inform the diagnosis of enamel caries (2021) · Cochrane
Specificity 0.86 [0.76, 0.92]NRUngraded
Analogue (conventional) radiographs vs Reference standard (histology, excavation, or enhanced visual examination)
Sensitivity for detection and diagnosis of early (enamel) caries · Asymptomatic children, adolescents, or adults presenting for clinical examination (in vivo studies), or extracted… · Up to 3 months between index test and reference standard (in vivo studies)
Imaging modalities to inform the detection and diagnosis of early caries (2021) · Cochrane
Sensitivity 0.44 [0.38, 0.50]51 studiesUngraded
Conventional bitewing radiography, E-speed film vs Histological validation of dental tissues (gold standard)
Diagnostic accuracy for proximal caries detection (caries detection level) · Extracted permanent posterior teeth with proximal surfaces (in vitro) · Caries detection level
Systematic review and meta-analysis of diagnostic studies of proximal surface caries. (2021)
Sensitivity 0.42 [0.28, 0.57]9 studiesUngraded
Radiographic imaging methods (any: analogue radiographs, digital radiographs, or CBCT) vs Reference standard (histology, excavation, or enhanced visual examination)
Sensitivity for detection and diagnosis of early (enamel) caries · Asymptomatic children, adolescents, or adults presenting for clinical examination (in vivo studies), or extracted… · Up to 3 months between index test and reference standard (in vivo studies), Reference standard: enhanced visual (non-CBCT)
Imaging modalities to inform the detection and diagnosis of early caries (2021) · Cochrane
Sensitivity 0.47 [0.29, 0.66]8 studiesUngraded
Conventional bitewing radiography, E-speed film vs Histological validation of dental tissues (gold standard)
Diagnostic accuracy for proximal caries detection (dentin detection level) · Extracted permanent posterior teeth with proximal surfaces (in vitro) · Dentin detection level
Systematic review and meta-analysis of diagnostic studies of proximal surface caries. (2021)
DOR 31.40 [14.31, 68.93]5 studiesUngraded
Visual or visual-tactile classification systems (any system: ICDAS, ERK, Nyvad, Downer, Lussi, UniViSS, or unspecified) vs Reference standard (histology, excavation, radiographs/microCT, or tooth separation)
Sensitivity for detection of enamel caries · Asymptomatic children or adults presenting for clinical examination (in vivo studies), or extracted teeth of children… · Up to 3 months between index test and reference standard (in vivo studies), Primary/mixed dentition
Visual or visual‐tactile examination to detect and inform the diagnosis of enamel caries (2021) · Cochrane
Sensitivity 0.87 [0.80, 0.92]NRUngraded
Radiographic imaging methods (any: analogue radiographs, digital radiographs, or CBCT) vs Reference standard (histology, excavation, or enhanced visual examination)
Sensitivity for detection and diagnosis of early (enamel) caries · Asymptomatic children, adolescents, or adults presenting for clinical examination (in vivo studies), or extracted… · Up to 3 months between index test and reference standard (in vivo studies), Permanent dentition (non-CBCT)
Imaging modalities to inform the detection and diagnosis of early caries (2021) · Cochrane
Sensitivity 0.44 [0.37, 0.51]NRUngraded
Digital bitewing radiography, phosphor plate (PSP) vs Direct visual examination after tooth separation or bioptical cavity preparation
Diagnostic accuracy for proximal caries detection (dentin detection level) · Patients with permanent posterior teeth, proximal surfaces assessed clinically (in vivo) · Dentin detection level
Systematic review and meta-analysis of diagnostic studies of proximal surface caries. (2021)
Specificity 0.60 [0.20, 0.90]1 studyUngraded
Visual classification: ICDAS (International Caries Detection and Assessment System) vs Reference standard (histology, excavation, radiographs/microCT, or tooth separation)
Specificity for detection of enamel caries · Asymptomatic children or adults presenting for clinical examination (in vivo studies), or extracted teeth of children… · Up to 3 months between index test and reference standard (in vivo studies)
Visual or visual‐tactile examination to detect and inform the diagnosis of enamel caries (2021) · Cochrane
Specificity 0.76 [0.67, 0.83]36 studiesUngraded
Conventional bitewing radiography, F-speed film vs Histological validation of dental tissues (gold standard)
Diagnostic accuracy for proximal caries detection (caries detection level) · Extracted permanent posterior teeth with proximal surfaces (in vitro) · Caries detection level
Systematic review and meta-analysis of diagnostic studies of proximal surface caries. (2021)
Specificity 0.88 [0.74, 0.95]8 studiesUngraded
Cone beam computed tomography (CBCT) vs Reference standard (histology, excavation, or enhanced visual examination)
Specificity for detection and diagnosis of early (enamel) caries · Asymptomatic children, adolescents, or adults presenting for clinical examination (in vivo studies), or extracted… · Up to 3 months between index test and reference standard (in vivo studies), Proximal surfaces (CBCT)
Imaging modalities to inform the detection and diagnosis of early caries (2021) · Cochrane
Specificity 0.90 [0.77, 0.96]NRUngraded
Dental imaging (analog or digital radiographs) vs Visual classification
Difference in sensitivity · Children or adults asymptomatic or suspected of enamel caries; extracted teeth · Analysis 1: fully within-person comparison
Enamel Caries Detection and Diagnosis: An Analysis of Systematic Reviews. (2021)
Difference in sensitivity -0.34 [-0.49, -0.17]19 studies · 2849 participantsUngraded
Digital bitewing radiography, phosphor plate (PSP) vs Direct visual examination after tooth separation or bioptical cavity preparation
Diagnostic accuracy for proximal caries detection (dentin detection level) · Patients with permanent posterior teeth, proximal surfaces assessed clinically (in vivo) · Dentin detection level
Systematic review and meta-analysis of diagnostic studies of proximal surface caries. (2021)
Sensitivity 0.83 [0.77, 0.88]1 studyUngraded
Radiographic imaging methods (any: analogue radiographs, digital radiographs, or CBCT) vs Reference standard (histology, excavation, or enhanced visual examination)
Sensitivity for detection and diagnosis of early (enamel) caries · Asymptomatic children, adolescents, or adults presenting for clinical examination (in vivo studies), or extracted… · Up to 3 months between index test and reference standard (in vivo studies), Dentine-caries (D3) prevalence medium 15-34% (non-CBCT)
Imaging modalities to inform the detection and diagnosis of early caries (2021) · Cochrane
Sensitivity 0.51 [0.40, 0.61]NRUngraded
Near-infrared (NIR) transillumination vs Reference standard: histology, or enhanced visual examination with or without radiographs (also operative excavation, tooth separation, or microcomputed tomography)
Sensitivity for detection of enamel/early caries · Children or adults presenting asymptomatically or suspected of having enamel caries (clinical/in vivo studies);… · Up to 3 months between index test and reference standard (in vivo; in vitro no limit if stored appropriately)
Transillumination and optical coherence tomography for the detection and diagnosis of enamel caries (2021) · Cochrane
Sensitivity 0.58 [0.46, 0.68]5 studiesUngraded
Visual or visual-tactile classification systems (any system: ICDAS, ERK, Nyvad, Downer, Lussi, UniViSS, or unspecified) vs Reference standard (histology, excavation, radiographs/microCT, or tooth separation)
Specificity for detection of enamel caries · Asymptomatic children or adults presenting for clinical examination (in vivo studies), or extracted teeth of children… · Up to 3 months between index test and reference standard (in vivo studies), High prevalence of dentine caries (>= 35%)
Visual or visual‐tactile examination to detect and inform the diagnosis of enamel caries (2021) · Cochrane
Specificity 0.75 [0.66, 0.82]NRUngraded
Conventional bitewing radiography, F-speed film vs Histological validation of dental tissues (gold standard)
Diagnostic accuracy for proximal caries detection (dentin detection level) · Extracted permanent posterior teeth with proximal surfaces (in vitro) · Dentin detection level
Systematic review and meta-analysis of diagnostic studies of proximal surface caries. (2021)
DOR 8.7 [4.2, 18.1]3 studiesUngraded
Remote screening of the oral cavity (mobile application/telemedicine) vs Reference standard: examination and clinical evaluation by a physician/clinician with specialist knowledge or training (long-term follow-up accepted for those screened negative)
Specificity for detection of oral cavity cancer/OPMD · Apparently healthy adults not reporting symptoms of OPMD or OSCC, attending an organised screening or surveillance…
Clinical assessment for the detection of oral cavity cancer and potentially malignant disorders in… (2021) · Cochrane
Summary of findings 4 (no pooled analysis): specificity 0.99 (95% CI 0.99 to 1.00), 1.00 (95% CI 0.91 to 1.00), and 0.72 (95% CI 0.63 to 0.80) across the 3 studies. Certainty VERY LOW.3 studies · 3600 participantsVery low
Electrical conductance devices (electronic caries monitor (ECM) and/or CarieScan Pro), used as an adjunct to clinical oral examination vs Reference standard: histology or enhanced visual examination (with or without radiographs)
Sensitivity · Children, adolescents, or adults presenting asymptomatically or suspected of early enamel caries (in vivo), or… · Up to 3 months between index test and reference standard (in vivo studies), Permanent dentition
Electrical conductance for the detection of dental caries (2021) · Cochrane
Permanent dentition (4 studies): sensitivity ranged from 0.55 to 0.65.4 studiesUngraded