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Evidence found and GRADE certainty

3,556 questions · 10,375 findings · 429 reviews · Oral Health

No studies found 1,344 · 13%GRADE not reported 6,832 · 65.9%Very low 1,228 · 11.8%Low 613 · 5.9%Moderate 290 · 2.8%High 68 · 0.7%

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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

Genetically predicted gene expression (TWAS; S-PrediXcan with GTEx v8 cis-eQTL across 49 tissues; cross-tissue S-MultiXcan) vs ECC-unaffected children (association of genetically predicted expression)

Early childhood caries (ECC) - association with genetically predicted expression of SMIM10L1 (chr12p13.2) · Children up to age 5-6 years (European / European non-Hispanic ancestry); 843 ECC-affected vs 2124 unaffected across 5 cohorts (N=2974)

Genetically predicted expression of SMIM10L1 was significantly associated with ECC in the TWAS (p = 1.70e-7); genetic association, ungraded.

1 finding from 1 review

Referral to a specific dental treatment facility vs Generic advice letter to see a dentist

Dental attendance · School children, primary school in Saudi Arabia

It is very uncertain whether referral to a specific dental treatment facility changes dental attendance (number of dental visits) compared with generic advice letter to see a dentist (very low certainty).

1 finding from 1 review

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

Alpha diversity (Chao1, Observed, Shannon) · Adults providing oral (saliva/supragingival plaque) 16S rRNA microbiome samples

In adults, caries-vs-health alpha diversity differed for the Shannon index but not Chao1/Observed (ungraded).

1 finding from 1 review

Maternal education attainment vs Children without dental caries

Dental caries (association with no formal maternal education) · Children (deciduous and/or permanent dentition) in low- and middle-income countries

No formal maternal education showed a non-significant trend toward higher odds of dental caries (OR 1.34, 95% CI 0.76 to 2.36; 3 studies; not GRADE-rated).

1 finding from 1 review

Tempered cetylpyridinium chloride vs Cold cetylpyridinium chloride

Reduction in level of contamination by particles >5 um (droplets) at <2 m from patient's oral cavity · Dental patients undergoing aerosol-generating procedures (AGPs) and the dental healthcare providers treating them

It is very uncertain whether tempered cetylpyridinium chloride changes reduction in level of contamination by particles >5 um (droplets) at… compared with cold cetylpyridinium chloride (very low certainty).

2 findings from 1 review

Composite resin with etch-and-rinse (total-etch) adhesion vs Composite resin with self-etch adhesion (same universal adhesive)

Treatment failure (annual failure rate) · Children with moderately deep dentine caries in primary molars, no pulp therapy

Etch-and-rinse adhesion failed more than self-etch (19.5% vs 7.0% annual failure) in one RCT; low quality of evidence (ungraded).

1 finding from 1 review

Amalgam restoration vs Composite resin, compomer, conventional glass-ionomer cement, or resin-modified GIC (head-to-head RCT comparators)

Treatment failure (annual failure rate) · Children with previously unrestored, vital carious lesions in primary teeth (no pulp therapy); aged 1.5-11 years

Amalgam restorations in primary teeth showed a wide annual failure rate (1-28%) across 4 RCTs; the evidence is of low quality (high risk of bias; ungraded).

1 finding from 1 review

Composite strip crown (CSC) with a post (microhybrid composite resin, Amelogen) vs Post type: composite post (CP) vs fibre post (FP) vs reverse metal post (RMP)

Treatment failure (annual failure rate) · Children with severely decayed maxillary primary incisors treated by pulpectomy (non-vital pulp therapy)

Composite strip crowns with composite posts had a low annual failure rate (2.3%) in maxillary primary incisors after pulpectomy (single high-risk-of-bias RCT; low quality of evidence; not GRADE-rated).

3 findings from 1 review

Living with HIV and undergoing antiretroviral therapy (ART/HAART) vs Healthy HIV-negative controls

Dental development / dental age (mineralization chronology) · Children or adolescents

No significant overall difference in dental development between CLWH on ART and healthy controls (three studies, narrative synthesis).

1 finding from 1 review

Resin-modified glass ionomer cement for bonding orthodontic brackets vs Resin composite restoration

Restoration failure · Children with carious primary teeth

No comparative effect estimate was reported; both arms had 16% failure.

1 finding from 1 review

Ion-releasing restoration, glass ionomer-based (conventional GIC, HV-GIC, RMGIC, glass hybrid) vs Resin composite restoration

Marginal adaptation (unacceptable marginal adaptation) · Patients with permanent dentition in need of restorations (all cavity types: Black's Class I, II, V, and non-carious cervical lesions)

Across follow-up periods, there was no statistically significant difference in unacceptable marginal adaptation between GIC and resin composite restorations.

6 findings from 1 review
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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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Glass ionomer-based sealant vs No sealant (control/no treatment)

Development of >=1 new carious lesion (caries incidence) · Children with caries-free primary first molars (with or without caries on other teeth), aged 1-5 years (paediatric clinic/dental school,…

Glass ionomer-based sealant may leads to lower development of >=1 new carious lesion (caries incidence) compared with no sealant (low certainty).

2 findings from 1 review

SaliCept (acemannan hydrogel) vs no treatment

Pain (VAS) · Adults (>18 years) with established dry socket following permanent tooth extraction
1 finding from 1 review