Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,315 questions · 23,557 findings · 2,311 reviews

No studies found 4,183 · 17.8%GRADE not reported 3,930 · 16.7%Very low 5,371 · 22.8%Low 5,787 · 24.6%Moderate 3,320 · 14.1%High 966 · 4.1%

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CO2 laser combined with fluoride vs Fluorides alone (monotherapy)

Enamel demineralization (QLF ΔF) · Human enamel specimens under cariogenic challenge (in situ / ex vivo)

Evidence on a synergistic effect of combining CO2 laser with fluoride versus fluoride alone is mixed: one ex-vivo study found combined treatment superior while another found no synergy (ungraded, 2 ex-vivo studies, no pooled estimate).

1 finding from 1 review

Slum / urban-disadvantaged setting vs Non-slum urban / general-urban / national population

Pattern of dental service utilisation and barriers · Adult residents of slums and non-slum urban settings of LMICs

Dental service use is low, episodic and pain-driven, with widespread self-care and cost/funding barriers; ungraded.

1 finding from 1 review

Slum / urban-disadvantaged setting vs Non-slum urban / general-urban / national population

Frequency of mouth cleaning · Adult residents of slums and non-slum urban settings of LMICs

Twice-daily cleaning (recommended) is uncommon; most clean once, in the morning; ungraded.

1 finding from 1 review

Institutionalization (living in an orphanage/institution) vs Parented children living with their families

Mean DMFT (decayed, missing, filled permanent teeth) · Institutionalized orphan children (roughly 3 to 18 years)

Permanent-teeth caries experience (DMF) was marginally higher in institutionalized children but essentially similar to parented children (pooled MD 0.09, not significant; very low certainty).

1 finding from 1 review

Slum / urban-disadvantaged setting vs Non-slum urban / general-urban / national population

Oral disease burden, slum vs non-slum urban comparison · Adult residents of slums and non-slum urban settings of LMICs

Where compared, oral disease burden is generally higher in slums than non-slum urban/national populations (5 studies; 1 found no difference); ungraded.

1 finding from 1 review

Silver diamine fluoride (SDF) vs Restoration (restorative treatment)

Dental pain or sensitivity · Children and adults (with or without carious lesions)

It is very uncertain whether silver diamine fluoride (SDF) changes dental pain or sensitivity compared with restoration (restorative treatment) (very low certainty).

1 finding from 1 review

Cesarean section delivery vs Vaginal delivery

Early childhood caries (ECC) · Children with average age ≤3 years

No significant association between cesarean vs vaginal delivery and ECC among children with average age ≤3 years (OR 0.86, 95% CI 0.67-1.10).

1 finding from 1 review

Intervention not reported

Reulceration · people with healed venous leg ulcers

The intervention showed no clear difference in reulceration (low certainty).

1 finding from 1 review

Intervention not reported

Duration of reulceration episodes · people with healed venous leg ulcers
1 finding from 1 review

Intervention not reported

Ulceration on the contralateral leg · people with healed venous leg ulcers
1 finding from 1 review

Intervention not reported

Noncompliance · people with healed venous leg ulcers

The intervention showed no clear difference in noncompliance (low certainty).

1 finding from 1 review

Summary of findings table ‐ Protein vs standard diet

Gastrointestinal adverse events · patients (> 65 years) following hip fracture; patients with a recent stroke

It is very uncertain whether summary of findings table ‐ Protein changes side effects: at least one adverse gastrointestinal event compared with standard diet (very low certainty).

1 finding from 1 review