evidencegaps
Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

1,966 questions · 3,201 findings · 165 reviews

Sort:Best matchNewestHighest certaintyDownload CSV
No studies found 25 · 0.8%GRADE not reported 2,717 · 84.9%Very low 167 · 5.2%Low 124 · 3.9%Moderate 132 · 4.1%High 36 · 1.1%

Non-responsive complementary feeding (NRCF) vs Other models of complementary feeding

Weight gain · Healthy, term-born, normal-birth-weight infants aged 4-24 months (breastfed and/or formula-fed) in Western industrialized countries

Narratively, restrictive NRCF style tended to favor excess weight and coercive/pressuring style tended to favor lower weight (3 of 5 studies each; ungraded).

1 finding from 1 review

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

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

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

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
Show 3 more findings

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
Show 4 more findings

Pulpotomy (full or partial) vs None (single-arm pooled success proportion)

Overall success (composite of clinical and radiographic success) · Human permanent teeth with asymptomatic irreversible pulpitis due to carious pulp exposure

In asymptomatic irreversible pulpitis, pooled pulpotomy success was 91.3% (95% CI 80-96.5%); ungraded.

1 finding from 1 review

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
Show 8 more findings

Pulpotomy with Biodentine vs Pulpotomy with Calcium Enriched Mixture (CEM)

Overall success (composite of clinical and radiographic success) · Human permanent teeth with irreversible pulpitis due to carious pulp exposure

Biodentine had a significantly higher pulpotomy success rate than CEM (indirect comparison; numeric estimate not available); ungraded.

1 finding from 1 review

Pulpotomy with mineral trioxide aggregate (MTA) vs Pulpotomy with Calcium Enriched Mixture (CEM)

Overall success (composite of clinical and radiographic success) · Human permanent teeth with irreversible pulpitis due to carious pulp exposure

MTA and CEM did not differ significantly in pulpotomy success (indirect comparison); ungraded.

1 finding from 1 review

Cleft lip and/or palate (CL/P) vs No cleft lip and/or palate (non-CL/P)

Early childhood caries experience (mean dmft) · Children in the primary dentition with non-syndromic cleft lip and/or palate (CL/P) and comparable children without CL/P

In the combined primary and mixed dentition, there was no evidence of a difference in caries experience between children with and without CL/P (SMD 0.09, 95% CI -0.59-0.76; 5 studies; ungraded).

4 findings from 1 review
Show 1 more finding

CD4+ T-cell count below 250 cells/mm3

HIV-related oral lesions · Children living with HIV receiving ART

One reported study did not show a clear difference in HIV-related oral lesions for children with CD4+ T-cell counts below 250 cells/mm3.

2 findings from 1 review

Prior application of silver diamine fluoride (SDF), with or without a rinsing step vs No prior SDF application (untreated dentin control)

Immediate bond strength (MPa) · Dental adhesives/resin composite bonded to dentin (in vitro), sound or caries-affected

Prior SDF application significantly reduces the immediate bond strength of adhesives to dentin overall (MD 7.12 MPa favoring untreated dentin, 95% CI 1.38 to 12.85; ungraded), with very high heterogeneity (I2=98%).

1 finding from 1 review

Primary school-based interventions (one or more of: school health policy, oral health education, healthy school environment, access to oral health services, community involvement) vs usual practice

Oral hygiene measured by mean gingival scores · Primary school children (aged 3-16 years) attending primary school in low- and middle-income countries (LMICs)

The effect of school-based interventions on gingival scores is uncertain and not statistically significant (SMD 0.12; very low certainty).

1 finding from 1 review

Primary school-based interventions (one or more of: school health policy, oral health education, healthy school environment, access to oral health services, community involvement) vs usual practice

Dental caries · Primary school children (aged 3-16 years) attending primary school in low- and middle-income countries (LMICs)

Among children aged 6-8 years, DMFT scores were significantly reduced (SMD -0.11); subgroup not separately GRADE-rated.

8 findings from 1 review
Show 5 more findings

Prefabricated zirconia crowns (e.g., NuSmile, Zirkiz, Kinder Krown) vs Other crowns/restorations (stainless steel crowns, pre-veneered SSC, resin composite strip crowns, glass-fiber composite crowns)

Recurrent caries (crowns free of recurrent caries) · Children with primary (deciduous) teeth requiring full-coverage crown restoration

Recurrent caries did not differ between zirconia crowns and other restorations at 6 months (RR 1.00, 95% CI 0.97 to 1.03; 2 studies; not GRADE-rated).

2 findings from 1 review

Antiretroviral therapy (any, including cART) vs No antiretroviral medication (treatment-naive)

Acute necrotising ulcerative gingivitis prevalence · Children and adolescents (<18 years) living with HIV (CLWH)

Acute necrotising ulcerative gingivitis was significantly more prevalent in treatment-naive CLWH than in those on ART (very low certainty).

1 finding from 1 review