Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

408 questions · 640 findings · 55 reviews · Oral Health

No studies found 32 · 5%GRADE not reported 528 · 82.5%Very low 29 · 4.5%Low 44 · 6.9%Moderate 7 · 1.1%High 0 · 0%

Early childhood caries (ECC) vs Caries-free controls

Number of detected salivary bacterial genera · Young children with early childhood caries and caries-free controls

Fewer salivary bacterial genera were reported in the caries-affected group, without a comparative effect estimate or CI.

1 finding from 1 review

Early childhood caries (ECC) vs Caries-free controls

Relative abundance of dominant salivary microbial community (7 genera) · Young children with early childhood caries and caries-free controls

The reported multi-genus community had similar relative abundance in caries-affected and caries-free children, without a comparative effect estimate or CI.

1 finding from 1 review

Early childhood caries (ECC) vs Caries-free controls

Streptococcus mutans and Veillonella spp. levels · Young children with early childhood caries and caries-free controls

Veillonella spp. levels were reported as substantially greater in caries subjects, but the review gave no numerical effect estimate or CI.

1 finding from 1 review

Early childhood caries (ECC) vs NA (within-white-spot-lesion correlation, not a caries vs caries-free comparison)

Correlation of Veillonella spp. with acidogenic streptococci · Young children with early childhood caries and caries-free controls

Veillonella spp. levels were correlated with acidogenic streptococci in white spot lesions (r²=0.38); no CI was reported.

1 finding from 1 review

Severe early childhood caries vs Caries-free controls

Relative abundance of Veillonella spp. · Children under 6 years with severe early childhood caries and caries-free controls

Veillonella spp. mean relative abundance was lower in the S-ECC group; no comparative effect estimate or CI was reported.

1 finding from 1 review

Severe early childhood caries vs Caries-free controls

Relative abundance of S. mutans in saliva · Children under 6 years with severe early childhood caries and caries-free controls

S. mutans median relative abundance was higher in the S-ECC group, without a comparative effect estimate or CI.

1 finding from 1 review

Severe early childhood caries vs Caries-free controls

Streptococcus relative abundance · Children under 6 years with severe early childhood caries and caries-free controls

Streptococcus mean relative abundance was slightly higher in the S-ECC group; no comparative effect estimate or CI was reported.

1 finding from 1 review

Severe early childhood caries vs Caries-free controls

Veillonella spp. and Streptococcus mutans interaction · Children under 6 years with severe early childhood caries and caries-free controls

The study reported a possible role for Veillonella spp. in supporting cariogenic species, without a quantitative effect estimate.

1 finding from 1 review

Severe early childhood caries vs Caries-free controls

Veillonella dispar relative abundance · Children under 6 years with severe early childhood caries and caries-free controls

Veillonella dispar median relative abundance was higher in the S-ECC group, without a comparative effect estimate or CI.

1 finding from 1 review

38% SDF solution (applied biannually) vs 38% SDF solution (applied annually)

Caries arrest · Children with dentine carious lesions (ICDAS 4-5) in primary teeth

Twice-yearly 38% SDF was reported to arrest more caries than once-yearly application (24-month rates 91% vs 79%; ungraded).

1 finding from 1 review

Early treatment (two-phase) with headgear vs Early treatment (two-phase) with functional appliance

Incidence of incisal trauma · Children (7 to 11 years) and adolescents (12 to 16 years) with prominent upper front teeth (Class II malocclusion)

Early treatment (two-phase) with headgear showed no clear difference in incidence of incisal trauma compared with early treatment (two-phase) with functional appliance; GRADE not reported.

2 findings from 1 review

Early treatment (two-phase) with headgear vs Early treatment (two-phase) with functional appliance

Final ANB · Children (7 to 11 years) and adolescents (12 to 16 years) with prominent upper front teeth (Class II malocclusion)

Early treatment (two-phase) with headgear showed no clear difference in final ANB compared with early treatment (two-phase) with functional appliance; GRADE not reported.

2 findings from 1 review

Early treatment (two-phase) with headgear vs Early treatment (two-phase) with functional appliance

PAR score · Children (7 to 11 years) and adolescents (12 to 16 years) with prominent upper front teeth (Class II malocclusion)

Early treatment (two-phase) with headgear showed no clear difference in PAR score compared with early treatment (two-phase) with functional appliance; GRADE not reported.

1 finding from 1 review

Early treatment (two-phase) with headgear vs Early treatment (two-phase) with functional appliance

Final overjet · Children (7 to 11 years) and adolescents (12 to 16 years) with prominent upper front teeth (Class II malocclusion)

Early treatment (two-phase) with headgear showed no clear difference in final overjet compared with early treatment (two-phase) with functional appliance; GRADE not reported.

2 findings from 1 review

Early childhood caries (ECC) vs Caries-free controls

Iron deficiency (as defined by trialists) · Preschool children (<6 years)

In a sensitivity analysis excluding one outlier study, ECC remained associated with higher odds of iron deficiency (OR 2.76, 95% CI 2.42 to 3.13); ungraded.

2 findings from 1 review