Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

423 questions · 477 findings · 107 reviews

No studies found 44 · 9.2%GRADE not reported 97 · 20.3%Very low 165 · 34.6%Low 113 · 23.7%Moderate 41 · 8.6%High 17 · 3.6%

Metal-free single crowns (full-contour zirconia) vs Composite strip crown

Treatment failure (annual failure rate) · Children (aged 3-5.5 years) with early childhood caries in anterior primary teeth (>=2 carious surfaces), no pulp therapy

Zirconia crowns failed less than composite strip crowns (3.3% vs 15% annual failure) in one RCT; low quality of evidence (ungraded).

1 finding from 1 review

Music therapy vs psychological treatment

Behaviour: Leaving the study early (short‐term) · depression in adults

Music therapy showed no clear difference in leaving the study early Up to 3 months compared with psychological treatment (moderate certainty).

1 finding from 1 review

Transmyocardial laser revascularization vs medical treatment

Early postoperative mortality Deaths in the 30 days after surgery · patients with refractory angina

Transmyocardial laser revascularization showed no clear difference in early postoperative mortality Deaths in the 30 days after surgery compared with medical treatment (high certainty).

1 finding from 1 review

Oral health education/promotion (oral hygiene advice plus diet and feeding practice advice) combined with clinical treatment for mother's dentition (basic restorative and preventive; 1 trial included CHX varnish application) vs usual care

Mother microbiological presence (high-level mutans streptococci / lactobacilli) · For interventions, pregnant women and mothers of infants in the first year of life; for outcomes, children up to 6 years of age

Oral health education/promotion (oral hygiene advice plus diet and… showed no clear difference in mother microbiological presence (high-level mutans streptococci /… compared with standard care; GRADE not reported.

1 finding from 1 review

Oral health education/promotion (oral hygiene advice plus diet and feeding practice advice) combined with clinical treatment for mother's dentition (basic restorative and preventive; 1 trial included CHX varnish application) vs usual care

Dental caries · For interventions, pregnant women and mothers of infants in the first year of life; for outcomes, children up to 6 years of age

The review found no eligible studies for this question.

2 findings from 1 review

Oral health education/promotion (oral hygiene advice plus diet and feeding practice advice) combined with clinical treatment for mother's dentition (basic restorative and preventive; 1 trial included CHX varnish application) vs usual care

Child oral health behaviours · For interventions, pregnant women and mothers of infants in the first year of life; for outcomes, children up to 6 years of age
1 finding from 1 review

Oral health education/promotion (oral hygiene advice plus diet and feeding practice advice) combined with clinical treatment for mother's dentition (basic restorative and preventive; 1 trial included CHX varnish application) vs usual care

Caries presence in primary teeth · For interventions, pregnant women and mothers of infants in the first year of life; for outcomes, children up to 6 years of age

It is very uncertain whether oral health education/promotion (oral hygiene advice plus diet and… changes caries presence in primary teeth compared with standard care (very low certainty).

1 finding from 1 review

Analogue (conventional) radiographs vs Cone beam computed tomography (CBCT) (direct within-person / paired comparison); reference standard: histology

Diagnostic accuracy: analogue versus CBCT (within-person, not pooled) · Asymptomatic children, adolescents, or adults presenting for clinical examination (in vivo studies), or extracted teeth of children or…
1 finding from 1 review
  • Imaging modalities to inform the detection and diagnosis of early caries 2021 · Cochrane All outcomes
    Up to 3 months between index test and reference standard (in vivo studies)
    Direct comparison analogue vs CBCT (within-person): 6 datasets from 3 studies (737 tooth sites or surfaces) provided data, but the results could not be pooled; only individual study results are shown (Figure 21). No…
    3 studies
    GRADE not reported

Prophylactic CPAP vs mechanical ventilation

Failed treatment defined as the need for mechanical ventilation · preterm infants

Prophylactic CPAP probably leads to lower failed treatment defined as the need for mechanical ventilation compared with mechanical ventilation (moderate certainty).

1 finding from 1 review