Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

270 questions · 565 findings · 37 reviews

No studies found 4 · 0.7%GRADE not reported 463 · 81.9%Very low 27 · 4.8%Low 23 · 4.1%Moderate 29 · 5.1%High 19 · 3.4%

Quantitative light-induced fluorescence (QLF) vs Reference standard (histology; some ICDAS/radiography)

Proximal caries detection: specificity · Extracted human teeth (in vitro); permanent teeth, proximal (approximal) surfaces

In vitro, QLF pooled specificity for proximal caries detection was 0.74 (3 permanent-teeth studies; no primary-dentition data; ungraded).

1 finding from 1 review

AI algorithms (predominantly CNN/deep learning) as index test vs Dental expert / visual-tactile clinical assessment (reference standard)

Positive likelihood ratio · Patients undergoing dental caries detection on dental images (teeth/surfaces across imaging modalities)

A positive AI test raises caries probability substantially (LR+ 10.44; positive post-test probability 79%); ungraded.

1 finding from 1 review

AI algorithms (predominantly CNN/deep learning) as index test vs Dental expert / visual-tactile clinical assessment (reference standard)

Log diagnostic odds ratio · Patients undergoing dental caries detection on dental images (teeth/surfaces across imaging modalities)

AI algorithms show strong pooled discriminative accuracy for dental caries (log DOR 4.37; DOR 70.9); ungraded.

1 finding from 1 review

Quantitative light-induced fluorescence (QLF) vs Reference standard (bitewing radiography, ADA classification, ICDAS II)

Proximal caries detection: sensitivity · Patients (in vivo); permanent and primary teeth, proximal (approximal) surfaces

In vivo, QLF pooled sensitivity for proximal caries detection was 0.74 (4 studies; ungraded).

2 findings from 1 review

AI algorithms (predominantly CNN/deep learning) as index test vs Dental expert / visual-tactile clinical assessment (reference standard)

Negative likelihood ratio · Patients undergoing dental caries detection on dental images (teeth/surfaces across imaging modalities)

A negative AI test lowers caries probability substantially (LR- 0.17; negative post-test probability 6%); ungraded.

1 finding from 1 review

Nano-hydroxyapatite (nHA) dentifrice/paste (fluoride-free or fluoridated) vs nHA-free / fluoride-free (negative) control

Mineral loss (transversal microradiography) · Enamel/dentin specimens with initial caries lesions (or sound surfaces) in intraoral (in situ) appliances worn by patients

Under remineralizing conditions, nHA produced significantly more remineralization than the negative control (MD 350, 95% CI 179 to 521; very low certainty).

2 findings from 1 review

Metal-free single crowns (full-contour zirconia) vs Composite strip crown

Treatment failure (annual failure rate) · Children (aged 3-5.5 years) with early childhood caries in anterior primary teeth (>=2 carious surfaces), no pulp therapy

Zirconia crowns failed less than composite strip crowns (3.3% vs 15% annual failure) in one RCT; low quality of evidence (ungraded).

1 finding from 1 review

Fluoride-free nano-hydroxyapatite (nHA) dentifrice/paste vs Sodium fluoride (control) toothpaste

Mineral loss (transversal microradiography) · Enamel/dentin specimens with initial caries lesions (or sound surfaces) in intraoral (in situ) appliances worn by patients

Under demineralizing conditions, nHA allowed significantly more enamel demineralization than NaF (MD 1625, 95% CI 553 to 2697; very low certainty).

2 findings from 1 review

Hall technique vs Compomer restoration or non-restorative caries treatment

Treatment failure (annual failure rate) · Children (aged 3-8 years) with 2-surface occluso-proximal dentine caries in primary molars, no pulp therapy

Preformed metal (Hall) crowns had a low reported annual failure rate (3.1%) versus compomer (14.7%) in one RCT; low quality of evidence (ungraded).

1 finding from 1 review

Resin-based fissure sealant vs Fluoride varnish

Caries incidence of first permanent molars (FPMs) · Schoolchildren aged 6-12 years with sound occlusal surfaces of the first permanent molars

Pit and fissure sealant and fluoride varnish showed no statistically significant difference in caries incidence of first permanent molars at 24 months (RR 0.65, 95% CI 0.31 to 1.38; I2=89%; not GRADE-rated).

1 finding from 1 review

Sealant (any type) vs no treatment

Arrest or reversal of noncavitated approximal carious lesions · Children and adults with noncavitated carious lesions on approximal surfaces (primary and permanent teeth)

Sealant may be more effective than no treatment for arrest or reversal of approximal carious lesions (RR 2.41, 95% CI 1.26 to 4.58; low certainty).

1 finding from 1 review

38% silver diamine fluoride vs Fluoride varnish

Arrest or reversal of noncavitated and cavitated root carious lesions · Adults (including institutionalized/older adults) with noncavitated and cavitated carious lesions on root surfaces (permanent teeth)

38% SDF solution (applied annually) may not differ from 5% NaF varnish for arrest or reversal of root carious lesions (RR 0.64, 95% CI 0.04 to 9.66; very low certainty).

1 finding from 1 review

0.2% NaF mouthrinse + supervised toothbrushing vs Sealant

Arrest or reversal of noncavitated occlusal carious lesions · Children and adults with noncavitated carious lesions on occlusal surfaces (primary and permanent teeth)

0.2% NaF mouthrinse + supervised toothbrushing may not differ from Sealant for arrest or reversal of occlusal carious lesions (RR 0.98, 95% CI 0.84 to 1.14; low certainty).

1 finding from 1 review

38% silver diamine fluoride vs placebo

Root carious lesions arrest · Older adults with root carious lesions (exposed root surfaces)

One review reported SDF may reduce progression of root caries, with no numeric result (ungraded).

3 findings from 1 review

Sealant (any type) vs no treatment

Arrest or reversal of noncavitated occlusal carious lesions · Children and adults with noncavitated carious lesions on occlusal surfaces (primary and permanent teeth)

Sealant was probably more effective than no treatment for arrest or reversal of occlusal carious lesions (RR 1.98, 95% CI 1.61 to 2.44; moderate certainty).

1 finding from 1 review

1% chlorhexidine + 1% thymol varnish vs 38% SDF + potassium iodide solution (applied annually)

Arrest or reversal of noncavitated and cavitated root carious lesions · Adults (including institutionalized/older adults) with noncavitated and cavitated carious lesions on root surfaces (permanent teeth)

1% chlorhexidine + 1% thymol varnish may not differ from 38% SDF + potassium iodide solution (applied annually) for arrest or reversal of root carious lesions (RR 0.71, 95% CI 0.11 to 4.45; very low certainty).

1 finding from 1 review

38% silver diamine fluoride vs no treatment

Arrest or reversal of noncavitated and cavitated root carious lesions · Adults (including institutionalized/older adults) with noncavitated and cavitated carious lesions on root surfaces (permanent teeth)

38% SDF solution (applied annually) may not differ from no treatment for arrest or reversal of root carious lesions (RR 1.92, 95% CI 0.52 to 6.87; very low certainty).

1 finding from 1 review

1.23% APF gel vs no treatment

Arrest or reversal of noncavitated occlusal carious lesions · Children and adults with noncavitated carious lesions on occlusal surfaces (primary and permanent teeth)

1.23% APF gel was probably more effective than no treatment for arrest or reversal of occlusal carious lesions (RR 2.13, 95% CI 1.79 to 2.54; moderate certainty).

1 finding from 1 review

38% silver diamine fluoride vs placebo

Root carious lesions prevention · Older adults with root carious lesions (exposed root surfaces)

38% silver diamine fluoride reduced root-caries increment (DMFRS/DFRS) versus placebo, MD −0.33 (95% CI −0.39 to −0.28) (ungraded).

3 findings from 1 review

Fluoride varnish vs Resin infiltration alone

Arrest or reversal of noncavitated approximal carious lesions · Children and adults with noncavitated carious lesions on approximal surfaces (primary and permanent teeth)

5% NaF varnish may not differ from Resin infiltration for arrest or reversal of approximal carious lesions (RR 1.09, 95% CI 0.32 to 3.65; very low certainty).

1 finding from 1 review