Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

828 questions · 1,477 findings · 103 reviews

No studies found 5 · 0.3%GRADE not reported 1,402 · 94.9%Very low 38 · 2.6%Low 20 · 1.4%Moderate 11 · 0.7%High 1 · 0.1%

Intervention not reported

Dental caries in primary teeth · Children (primary dentition) worldwide

In Africa, the pooled prevalence of primary-teeth caries in children was 53.1% (95% CI 44.3 to 61.7); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries in primary teeth · Children (primary dentition) worldwide

In Asia, the pooled prevalence of primary-teeth caries in children was 52.6% (95% CI 46.7 to 58.5); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries in primary teeth · Children (primary dentition) worldwide

In Europe, the pooled prevalence of primary-teeth caries in children was 21.4% (95% CI 15.3 to 29.1); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries in permanent teeth · Children (permanent dentition) worldwide

The pooled worldwide prevalence of dental caries in permanent teeth in children was 53.8% (95% CI 50.0 to 57.5), with very high heterogeneity (I2=99.8%); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries in primary teeth · Children (primary dentition) worldwide

In the Americas, the pooled prevalence of primary-teeth caries in children was 45.8% (95% CI 34.2 to 58.0); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries in primary teeth · Children (primary dentition) worldwide

The pooled worldwide prevalence of dental caries in primary teeth in children was 46.2% (95% CI 41.6 to 50.8), with very high heterogeneity (I2=99.2%); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries in permanent teeth · Children (permanent dentition) worldwide

In the Americas, the pooled prevalence of permanent-teeth caries in children was 48.9% (95% CI 37.6 to 60.3); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries in permanent teeth · Children (permanent dentition) worldwide

In Asia, the pooled prevalence of permanent-teeth caries in children was 58.8% (95% CI 53.4 to 64.0); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence · Children (<12 years) and adolescents (12-18 years) with type 1 diabetes

Caries prevalence was highest in South American studies at 84% (95% CI 0.67 to 0.94); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence · Children (<12 years) and adolescents (12-18 years) with type 1 diabetes

Caries prevalence in Asian studies was 67% (95% CI 0.43 to 0.85); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence · Children (<12 years) and adolescents (12-18 years) with type 1 diabetes

Caries prevalence was lowest among those with good metabolic control at 47% (95% CI 0.30 to 0.64); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence · Children (<12 years) and adolescents (12-18 years) with type 1 diabetes

Caries prevalence in European studies was 57% (95% CI 0.41 to 0.72); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence · Children (<12 years) and adolescents (12-18 years) with type 1 diabetes

The pooled prevalence of dental caries among children and adolescents with type 1 diabetes was 67% (95% CI 0.56 to 0.77), with high heterogeneity (I2=83%); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence · Children (<12 years) and adolescents (12-18 years) with type 1 diabetes

Caries prevalence in the single North American study was 64% (95% CI 0.52 to 0.74); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence · Children (<12 years) and adolescents (12-18 years) with type 1 diabetes

Caries prevalence was lower in those with mean age >10 years at 57% (95% CI 0.45 to 0.68); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence · Children (<12 years) and adolescents (12-18 years) with type 1 diabetes

Caries prevalence was higher in those with mean age <=10 years at 80% (95% CI 0.74 to 0.85); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence · Children (<12 years) and adolescents (12-18 years) with type 1 diabetes

Caries prevalence among those with poor metabolic control was 66% (95% CI 0.43 to 0.83); certainty not graded.

1 finding from 1 review

Down syndrome vs Individuals without Down syndrome (healthy controls: siblings, schoolchildren or others)

Mean DMFT (decayed, missing, filled permanent teeth) · Individuals of all ages

Individuals with Down syndrome had a lower mean DMFT in permanent teeth than controls (pooled SMD -0.18, 95% CI -0.35 to -0.02; 6 studies; I2=20%); certainty of evidence not graded.

1 finding from 1 review