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Evidence found and GRADE certainty

125 questions · 220 findings · 29 reviews

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No studies found 0 · 0%GRADE not reported 201 · 91.4%Very low 13 · 5.9%Low 5 · 2.3%Moderate 1 · 0.5%High 0 · 0%

Prenatal vitamin D deficiency (low maternal 25(OH)D during pregnancy) vs Adequate prenatal vitamin D (sufficient maternal 25(OH)D)

Dental caries prevalence · Children aged 2 to 8 years

The review reported 44% dental caries prevalence among children of mothers with low prenatal vitamin D.

2 findings from 1 review

Not applicable (single-group prevalence) vs Not applicable (single-group prevalence)

Dental caries prevalence · Primary school children in Ethiopia

Among studies using systematic random sampling, the pooled prevalence of dental caries was 35% (ungraded; CI not reported).

4 findings from 1 review
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Not applicable (single-group prevalence) vs Not applicable (single-group prevalence)

Early childhood caries (ECC) · Children aged 0-5 years in North Africa

Pooled ECC prevalence in Tunisia was 38% (95% CI 24-51), significantly lower than Egypt and Sudan.

10 findings from 1 review
Show 7 more findings

Not applicable (single-group prevalence) vs Not applicable (single-group prevalence)

Dental caries prevalence · Children (<18 years) with intellectual and developmental disabilities (IDD) in India

Dental caries affects about 64% of children with IDD in India (pooled prevalence 0.64, 95% CI 0.45-0.79; high heterogeneity; ungraded).

1 finding from 1 review

Not applicable (single-group prevalence) vs Not applicable (single-group prevalence)

Early childhood caries (ECC) · Children younger than 71 months (under 6 years)

Pooled ECC prevalence in Europe was 36% (95% CI 25-47).

16 findings from 1 review
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Dental caries assessment (WHO/clinical diagnostic criteria; caries = DMFT>0) vs None (descriptive prevalence meta-analysis)

Dental caries prevalence · General Pakistani population (all ages and both sexes; predominantly children and adolescents)

In permanent dentition, the pooled prevalence of dental caries was 57.2% (95% CI 26.3 to 85.3); ungraded.

10 findings from 1 review
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Dental caries assessment (WHO/clinical diagnostic criteria; caries = DMFT>0) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)

Dental caries prevalence · 12-year-old children (permanent dentition) in Africa

Pooled caries prevalence in Uganda was 0.27 (95% CI 0.126 to 0.418; 3 article(s); not GRADE-rated).

23 findings from 1 review
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Dental caries assessment (WHO/clinical diagnostic criteria; caries = DMFT>0) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)

Dental caries prevalence · Healthy children and adolescents in the United Arab Emirates

Dental caries is highly prevalent among children and adolescents in the UAE, ranging from 22% to 99.4% across cross-sectional studies (narrative synthesis; not GRADE-rated).

1 finding from 1 review

Caries assessment at dentine threshold (cavitation into dentine) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)

Dental caries prevalence · European adolescents aged 12–19 years

Caries prevalence at the dentine threshold was about 56% (pooled 0.56, 95% CI 0.43 to 0.68; 15 studies; not GRADE-rated).

7 findings from 1 review
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Caries assessment at enamel threshold vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)

Dental caries prevalence · European adolescents aged 12–19 years

Enamel-threshold caries prevalence in subgroup 'Region: non-Scandinavian' was 0.74 (95% CI 0.53 to 0.96; 11 studies).

11 findings from 1 review
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Cesarean section delivery vs Vaginal delivery

Caries prevalence (early childhood caries) · Toddlers and preschool children, 2 to 6 years of age (primary dentition)

Caesarean section delivery may be associated with a modestly higher prevalence of early childhood caries than vaginal delivery (pooled OR 1.48), but the evidence is inconsistent and of very low certainty.

1 finding from 1 review

Low tooth brushing frequency (<2 times/day) vs High tooth brushing frequency (>=2 times/day)

Early childhood caries (ECC) · Healthy children under 6 years of age (6 months to 6 years); preschool children

After excluding an extreme outlier (Alhabdan 2018), the association between low brushing frequency and ECC remained statistically significant (pooled OR approximately 2.0, p=0.003; I2=87.5%); the exact estimate and its CI were not reported; ungraded.

2 findings from 1 review

Late tooth brushing initiation (>=12 months, or >=2 years in some studies) vs Early tooth brushing initiation (<12 months, or <2 years)

Early childhood caries (ECC) · Healthy children under 6 years of age (6 months to 6 years); preschool children

In the primary pooled analysis, late tooth brushing initiation was associated with a non-significant 40% higher odds of early childhood caries (OR 1.40, 95% CI 0.91 to 2.16), with very high heterogeneity (I2=90.5%); ungraded.

2 findings from 1 review

Private day care vs Public day care

Dental caries prevalence · Preschool children in Sharjah day cares

Caries prevalence was 77% in private day cares versus 22% in public day cares.

2 findings from 1 review

Dental caries assessment (WHO/clinical diagnostic criteria; caries = DMFT>0) vs None (descriptive prevalence; random-effects pooled proportion)

Dental caries prevalence · Children (deciduous and/or permanent dentition) in low- and middle-income countries

About 39% of children in LMICs had dental caries (pooled prevalence 0.387, 95% CI 0.284 to 0.495; 11 studies; very high heterogeneity I2=99%; not GRADE-rated).

1 finding from 1 review