Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,745 questions · 4,389 findings · 203 reviews · Oral Health

No studies found 39 · 0.9%GRADE not reported 3,844 · 87.6%Very low 198 · 4.5%Low 137 · 3.1%Moderate 134 · 3.1%High 37 · 0.8%

Longitudinal follow-up over time (natural caries progression; no assigned intervention) vs Within-cohort change from baseline to follow-up (>=3 y)

Annual decline in percentage of caries-free children (primary dentition, d3) · Children (primary dentition, d3), Western or comparable populations

In the primary dentition, the annual decline in the percentage of caries-free children ranged from 3.8% to 12.2% across 6 studies (descriptive range, no pooled estimate; ungraded).

1 finding from 1 review

Learning disability (CLD) vs No learning disability (CNLD)

Early childhood caries experience (mean dmft) · Children aged 1-18 years

In primary teeth, meta-analysis found no evidence of a difference in caries experience (dmft/deft) between children with and without learning disabilities (SMD 0.41, 95% CI -0.14 to 0.96; 8 studies; certainty not graded).

4 findings from 1 review
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Juvenile idiopathic arthritis (JIA) vs Children and adolescents without JIA (healthy peers)

Developmental defects of enamel measured by any validated index · Children and adolescents with juvenile idiopathic arthritis (JIA)

A single small study suggested developmental enamel defects were more frequent in children with JIA, but the evidence is insufficient (1 study; ungraded).

1 finding from 1 review

Laser enamel preparation alone (Er,Cr:YSGG or CO2 laser) vs Acid-etching (phosphoric acid)

Acceptability · Caries-free children to young adults with premolars/molars requiring pit-and-fissure sealants

Both laser and acid-etching preparation were well accepted by patients (VAS, P = 1.000; ungraded, single study).

1 finding from 1 review

Laser enamel preparation alone (Er,Cr:YSGG or CO2 laser) vs Acid-etching (phosphoric acid)

Clinical (chair-side) time · Caries-free children to young adults with premolars/molars requiring pit-and-fissure sealants

Laser conditioning was reported to take less chair-side time than acid-etching in the studies that measured it, but times were not pooled (ungraded, narrative).

1 finding from 1 review

Juvenile idiopathic arthritis (JIA) vs Children and adolescents without JIA (healthy peers)

Oral ulcerations · Children and adolescents with juvenile idiopathic arthritis (JIA)

A single study reported more oral ulcerations in children with JIA (5/41) than without JIA (1/41); evidence is limited to one study (ungraded).

1 finding from 1 review

Residence in low-contamination area (approx. 5-15 Ci/km2) vs Residence in non-contaminated (non-exposed) area (<1 Ci/km2)

Dental caries · Children aged 5-7 years (early school-age)

In early school-age children (5-7 y) from a low-contamination area, one study reported higher DMFT/dmft in exposed than non-exposed children; the estimate was not pooled (ungraded).

1 finding from 1 review

Silver diamine fluoride (SDF; 30% or 38%) vs Fluoride varnish

Arrest of dentine caries · Preschool children with active dentine caries in primary teeth (mean age 3.4-4.0 years)

Silver diamine fluoride was about 2.5 times more likely than sodium fluoride to arrest dentine caries surfaces at 18 months (pooled OR 2.51, 95% CI 1.25 to 5.10; 2 RCTs), although between-study heterogeneity was high (I2=90.3%); certainty of evidence was not formally graded.

2 findings from 1 review

Longitudinal follow-up over time (natural caries progression; no assigned intervention) vs Within-cohort change from baseline to follow-up (>=3 y)

Caries incidence rate (first D3 lesion) per person-year at risk (permanent dentition) · Children and adolescents (permanent dentition, D3, up to 21 y), Western or comparable populations

In the permanent dentition, the pooled caries incidence rate was 0.11 per person-year at risk (95% CI 0.09 to 0.13; random-effects meta-analysis of 15 studies), i.e., about 11 of every 100 caries-free persons develop dentine caries each year (ungraded).

1 finding from 1 review
  • Caries Progression Rates Revisited: A Systematic Review. 2019 All outcomes
    Per person-year at risk · Western Europe, North America, Australia, New Zealand (or comparable Western populations)
    Incidence rate (per person-year at risk) 0.11 [0.09, 0.13]
    15 studies · 10768 participants
    GRADE not reported

38% silver diamine fluoride vs Fluoride varnish or placebo

Coronal carious lesions arrest · Children with coronal carious lesions (primary dentition)

One review reported prevented fractions of 55 to 96% favouring 38% SDF over fluoride varnish or placebo for arresting coronal caries in primary teeth (two studies; ungraded).

1 finding from 1 review

Oral-health promotion programs (OHPPs): community-based oral-health education/training, supervised toothbrushing with fluoride toothpaste and topical fluoride, dental screening, and dietary advice vs No oral-health promotion program, or a differing (usual-care) action under similar conditions

Incremental cost‐effectiveness · Children younger than 6 years (healthy except for dental caries)

In children younger than 6 years, OHPPs were associated with lower cost per DMFT/S (OR 0.07, 95% CI 0.02 to 0.32; ungraded).

1 finding from 1 review

Laser enamel preparation alone (Er,Cr:YSGG or CO2 laser) vs Acid-etching (phosphoric acid)

Sealant retention rate (completely retained) · Caries-free children to young adults with premolars/molars requiring pit-and-fissure sealants

At 18 months, laser preparation alone did not differ significantly from acid-etching for sealant retention (OR 0.82, 95% CI 0.23 to 2.85; ungraded, single study, high risk of bias).

6 findings from 1 review
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Oral-health promotion programs (OHPPs): community-based oral-health education/training, supervised toothbrushing with fluoride toothpaste and topical fluoride, dental screening, and dietary advice vs No oral-health promotion program, or a differing (usual-care) action under similar conditions

DMFT/DMFS index (dental caries experience) · Children aged 0-12 years (studies published 2015 or later)

In studies published from 2015 onward, OHPPs were associated with lower DMFT (OR 0.08, 95% CI 0.01 to 0.53; ungraded).

1 finding from 1 review

38% SDF + potassium iodide solution (applied annually) 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 + potassium iodide solution (applied annually) may not differ from no treatment for arrest or reversal of root carious lesions (RR 2.36, 95% CI 0.66 to 8.42; very low certainty).

1 finding from 1 review

Fluoride varnish vs Resin infiltration + 5% NaF varnish

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

5% NaF varnish was probably less effective than Resin infiltration + 5% NaF varnish for arrest or reversal of occlusal carious lesions (RR 0.62, 95% CI 0.46 to 0.83; moderate certainty).

1 finding from 1 review

Pulpotomy (full or partial) vs Pulpectomy

Clinical failure · Children with carious vital pulp exposure in primary incisors

Pulpotomy may not differ from pulpectomy for clinical failure; no GRADE rating was reported.

1 finding from 1 review