Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

606 questions · 682 findings · 77 reviews

No studies found 99 · 14.5%GRADE not reported 215 · 31.5%Very low 197 · 28.9%Low 102 · 15%Moderate 48 · 7%High 21 · 3.1%

Exposure to pulsed magnetic fields (in addition to self‐care and protective footwear) vs self‐care and footwear

Ulcer healing · ulceration and other skin changes caused by nerve damage in leprosy
2 findings from 1 review

Non-syndromic cleft lip and palate (CLP) status and its oral microbiota (exposure/grouping) vs Children and adolescents aged 0-18 years without CLP (controls)

Dental caries · Children and adolescents aged 0-18 years with non-syndromic cleft lip and palate (CLP)

Pooling 3 studies, children/adolescents with CLP were about 2.03 times more likely to have dental caries than non-CLP controls (p<0.005; low heterogeneity), though most included studies were at high risk of bias; the evidence is ungraded.

1 finding from 1 review

Non-syndromic cleft lip and palate (CLP) status and its oral microbiota (exposure/grouping) vs Children and adolescents aged 0-18 years without CLP (controls)

Lactobacillus spp. salivary/plaque counts (cariogenic microbiota) · Children and adolescents aged 0-18 years with non-syndromic cleft lip and palate (CLP)

A meta-analysis found no significant difference in mean Lactobacillus spp. levels between children with and without CLP, with high heterogeneity; the evidence is ungraded.

1 finding from 1 review

Non-syndromic cleft lip and palate (CLP) status and its oral microbiota (exposure/grouping) vs Children and adolescents aged 0-18 years without CLP (controls)

Streptococcus mutans count · Children and adolescents aged 0-18 years with non-syndromic cleft lip and palate (CLP)

A meta-analysis of 2 studies found no difference in mean Streptococcus mutans levels between children with and without CLP, with very high heterogeneity; the evidence is ungraded.

1 finding from 1 review

Non-syndromic cleft lip and palate (CLP) status and its oral microbiota (exposure/grouping) vs Children and adolescents aged 0-18 years without CLP (controls)

Periodontal conditions (gingival inflammation, bleeding on probing, probing depth, clinical attachment loss) · Children and adolescents aged 0-18 years with non-syndromic cleft lip and palate (CLP)

Narrative synthesis of 6 studies suggests children/adolescents with CLP have poorer periodontal status (higher gingival and plaque indices, deeper probing, more bleeding and attachment loss) and harbor periodontopathogens; no pooled estimate and the evidence is ungraded.

1 finding from 1 review

E-cigarette aerosol / e-liquid exposure (flavored and unflavored; nicotine and non-nicotine) vs Unexposed controls / unflavored e-liquid / conventional cigarette smoke

Enamel/dental hard-tissue changes and e-liquid cariogenic properties (demineralization, colour change, pH, sugar content, metals) · Oral bacteria (streptococci), dental hard tissue (enamel/dentin) and e-liquids studied in vitro/ex vivo (with a few clinical microbiome…

In vitro evidence suggests e-liquids are often acidic and sugar-containing and can alter enamel/dentin colour and properties, supporting a plausible cariogenic effect, but findings are heterogeneous and not pooled (ungraded, narrative).

1 finding from 1 review

E-cigarette aerosol / e-liquid exposure (flavored and unflavored; nicotine and non-nicotine) vs Unexposed controls / unflavored e-liquid / conventional cigarette smoke

Cariogenic and commensal oral bacteria (S. mutans and commensal streptococci growth, adhesion, biofilm) · Oral bacteria (streptococci), dental hard tissue (enamel/dentin) and e-liquids studied in vitro/ex vivo (with a few clinical microbiome…

Most in vitro studies indicate e-cigarette aerosol/e-liquid (especially flavored/high-concentration) disrupts normal oral flora and favors cariogenic S. mutans growth and biofilm, plausibly increasing caries risk; not pooled (ungraded, narrative).

1 finding from 1 review

All exposure-OHRQoL estimates pooled for publication-bias correction (meta-trim sensitivity); specific exposure set not defined in source vs Not specified

Poor oral health-related quality of life (OHRQoL) · Children aged 3-12 years

A trim-and-fill sensitivity analysis pooling every exposure estimate gave an overall OR of 0.17 (95% CI 0.13-0.21) after correcting for significant publication bias (Fig. 13); this combined estimate spans heterogeneous exposures and is a publication-bias sensitivity result (ungraded).

1 finding from 1 review

Minimally invasive caries removal (MIT): selective removal to soft dentin, self-limiting chemomechanical removal, or partial/incomplete caries removal vs Conventional caries removal (CT): selective removal to firm dentin, stepwise excavation, or complete caries removal

Pulp exposure rate · Patients with deep carious lesions in permanent (mainly posterior) teeth

Minimally invasive caries removal was associated with a lower mean pulp exposure rate than conventional removal (1.2% vs 8.1%), but the difference was not statistically significant (Wilcoxon, p = 0.068); certainty of evidence was not graded.

1 finding from 1 review

Decision aids for informed consent vs usual care

Congruence between informed values and choice ‐ all studies Based on the proportion of participants who made a decision that aligned with what was most important to them. Assessed soon after exposure to the decision aid. · adults considering treatment or screening decisions

Patient decision aids probably leads to higher congruence between informed values and choice ‐ all studies Based on… compared with usual care (moderate certainty).

1 finding from 1 review

Single‐incision slings vs retropubic minimally‐invasive slings

Number of women with mesh exposure, extrusion or erosion in any area · women with urinary incontinence

Single‐incision slings showed no clear difference in number of women with mesh exposure, extrusion or erosion in any area compared with retropubic minimally‐invasive slings (low certainty).

1 finding from 1 review