Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

132 questions · 185 findings · 31 reviews

No studies found 1 · 0.5%GRADE not reported 164 · 88.6%Very low 18 · 9.7%Low 1 · 0.5%Moderate 1 · 0.5%High 0 · 0%

High-frequency sugar consumption (three or more times daily) vs Low sugar intake (fewer than three times daily)

Dental caries prevalence · Nigerian individuals, including children and adults, with primary or permanent dentition

High-frequency sugar consumption was associated with 18% higher but non-significant odds of dental caries in Nigeria (OR 1.18, 95% CI 0.87 to 1.59; I2=36%; ungraded).

1 finding from 1 review

Combined antiretroviral therapy (cART) vs Monotherapy or dual antiretroviral therapy

Dental caries prevalence and severity · Children and adolescents (<18 years) living with HIV (CLWH)

No significant difference in dental caries/severity between ART regimens (very low certainty).

1 finding from 1 review

Food and nonalcoholic beverage marketing (exposure) vs No, less, or less powerful food marketing

Dental caries · Children and adolescents (general population, aged under 20 years)

Evidence on food marketing and dental caries is very uncertain (very low certainty); 1 of 2 studies found an association.

1 finding from 1 review

Food marketing exposure or greater marketing power vs No, less, or less powerful food marketing

Dental caries · Children and adolescents (general population, aged under 20 years)

Across two studies, 50% showed any association of potential public health harm for dental caries (very low certainty).

1 finding from 1 review

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

Development of >=1 new carious lesion (caries incidence) · Caries-free children to young adults with premolars/molars requiring pit-and-fissure sealants

In the single study reporting it, caries incidence was 0% in both the laser-alone and acid-etching groups (ungraded, single study).

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

High-frequency sugar consumption (three or more times daily) vs Low sugar intake (fewer than three times daily)

Early childhood caries experience (mean dmft) · Nigerian children with primary dentition (approximately 6 months to 5 years)

In primary dentition, high-frequency sugar consumption was associated with slightly higher, non-significant odds of caries (OR 1.13, 95% CI 0.23 to 5.44), with high heterogeneity (I2=83%; ungraded).

1 finding from 1 review

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

Dental caries · Individuals of all ages

Individuals with Down syndrome had a lower prevalence of dental caries than those without (pooled OR 0.36, 95% CI 0.22 to 0.57; 2 studies; I2=0%); certainty of evidence not graded.

1 finding from 1 review

Higher JIA disease activity/severity (e.g., high JADAS/activity scores, polyarticular RF-negative subtype, active disease, anti-TNFalpha or cyclosporine medication) vs Lower JIA disease activity / inactive or milder JIA

Prevalence and severity of oral and TMJ diseases/conditions (periodontal status and dental caries) · Children and adolescents with juvenile idiopathic arthritis (JIA)

Some studies suggested greater JIA disease activity/severity (and certain medications) was associated with worse periodontal and caries outcomes, but small samples meant no solid conclusion could be drawn (ungraded).

1 finding from 1 review

Disability (developmental, intellectual, or sensory) vs Persons without disabilities

Dental caries prevalence and severity · Persons with disabilities (children and adults with autism, Down syndrome, cerebral palsy, hearing impairment, or multiple disabilities)…

Dental caries prevalence and severity are high among persons with disabilities in Saudi Arabia (60% to over 80%), and the one comparative autism study reported significantly higher caries than controls; synthesized narratively (ungraded).

1 finding from 1 review

Intervention not reported

Dental caries prevalence in primary teeth (cavitated lesions) · Children aged 5-6 years in Latin America and the Caribbean

In other Latin American/Caribbean countries, pooled primary-teeth caries prevalence was 70% (95% CI 59-79%), significantly higher than Brazil (p=0.002); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence in primary teeth (cavitated lesions) · Children aged 5-6 years in Latin America and the Caribbean

In Brazil, pooled primary-teeth caries prevalence in 5-6 year-olds was 52% (95% CI 49-54%); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence in primary teeth (cavitated lesions) · Children aged 5-6 years in Latin America and the Caribbean

About 56% of 5-6 year-old children in Latin America and the Caribbean had dental caries in primary teeth (95% CI 52-59%); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence in permanent teeth (cavitated lesions) · Children aged 11-13 years in Latin America and the Caribbean

In other Latin American/Caribbean countries, pooled permanent-teeth caries prevalence was 64% (95% CI 45-79%), not significantly different from Brazil (p=0.42); certainty not graded.

1 finding from 1 review

Intervention not reported

Dental caries prevalence in permanent teeth (cavitated lesions) · Children aged 11-13 years in Latin America and the Caribbean

In Brazil, pooled permanent-teeth caries prevalence in 11-13 year-olds was 56% (95% CI 53-60%), with a significant declining trend over time; certainty not graded.

1 finding from 1 review