Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,692 questions · 2,586 findings · 180 reviews · Dental caries

No studies found 194 · 7.5%GRADE not reported 1,937 · 74.9%Very low 248 · 9.6%Low 136 · 5.3%Moderate 52 · 2%High 19 · 0.7%

Carious dentin before cavity sealing vs Carious dentin after cavity sealing

MMP-8 expression/activity · Human ex vivo carious dentin under sealed cavities

MMP-8 may be higher before than after cavity sealing, but the evidence is very uncertain (very low certainty).

1 finding from 1 review

Irradiated carious dentin vs Non-irradiated carious dentin

MMP-9 expression/activity · Human ex vivo carious dentin (head/neck radiotherapy)

MMP-9 showed no increase in irradiated vs non-irradiated carious dentin (one study; ungraded).

1 finding from 1 review

Carious dentin before cavity sealing vs Carious dentin after cavity sealing

MMP-9 expression/activity · Human ex vivo carious dentin under sealed cavities

MMP-9 shows no difference before vs after cavity sealing; the evidence is very uncertain (very low certainty).

1 finding from 1 review

Root carious dentin vs Coronal carious dentin

MMP-13 presence/activity · Human ex vivo carious dentin

MMP-13 may be increased in root compared with coronal carious dentin, but the evidence is very uncertain (very low certainty).

1 finding from 1 review

Carious dentin vs Sound dentin

Cathepsin B (CT-B) presence/activity · Human ex vivo carious dentin (mostly coronal), natural caries lesions

Cathepsin B may be increased in carious dentin compared with sound dentin, but the evidence is very uncertain (very low certainty).

1 finding from 1 review

Carious dentin before cavity sealing vs Carious dentin after cavity sealing

MMP-2 expression/activity · Human ex vivo carious dentin under sealed cavities

MMP-2 shows no difference before vs after cavity sealing; the evidence is very uncertain (very low certainty).

1 finding from 1 review

Irradiated carious dentin vs Non-irradiated carious dentin

MMP-20 expression · Human ex vivo carious dentin (head/neck radiotherapy)

MMP-20 shows no difference between irradiated and non-irradiated carious dentin; the evidence is very uncertain (very low certainty).

1 finding from 1 review

Dental caries (carious oral microbiome) vs Caries-free / healthy oral microbiome

Differential microbial abundance / taxa predictive of caries · Individuals providing oral (saliva/supragingival plaque) 16S rRNA microbiome samples; 2016 samples from 19 studies (mixed children and…

A group of genera/species (notably Selenomonas, Aggregatibacter, Actinomyces, Treponema) was predictive of caries, whereas Streptococcus was not (ungraded).

1 finding from 1 review
  • Meta-analysis of caries microbiome studies can improve upon disease prediction outcomes. 2022 All outcomes
    Oral cavity microbiome (saliva and supragingival plaque samples); pooled across 19 international studies
    Mean-decrease-accuracy discriminating taxa: Capnocytophaga HMT-338, Lactobacillus panis, Treponema HMT-230, Bifidobacterium longum, Delftia acidovorans, Staphylococcus schleiferi; higher log2FC in caries: Selenomonas HMT-146, Aggregatibacter actinomycetemcomitans, Actinomyces HMT-896, Treponema HMT-257; Streptococcus not predictive
    19 studies · 2016 participants
    GRADE not reported

Not applicable (single-group prevalence) vs Not applicable

Dental caries prevalence · Children aged 12 years (plus or minus one year) in Africa

The pooled dental-caries prevalence was 0.3657 (95% CI 0.3065 to 0.4250); GRADE was not reported.

2 findings from 1 review

Intervention not reported

Dental caries prevalence · General population (children and adults) in East Africa

Caries prevalence in permanent dentition (>=12 years) was 50.2% (95% CI 38.4 to 62.1); certainty not graded.

1 finding from 1 review