Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,410 questions · 8,901 findings · 1,091 reviews

No studies found 1,687 · 19%GRADE not reported 1,469 · 16.5%Very low 1,969 · 22.1%Low 2,060 · 23.1%Moderate 1,302 · 14.6%High 414 · 4.7%

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Reactive gel surfaces on operating tables followed by foam surfaces on ward beds vs alternating pressure (active) air surfaces on operating tables and subsequently on ward beds

Proportion of participants developing a new pressure ulcer · preventing pressure ulcers

Reactive gel surfaces on operating tables followed by foam surfaces… may leads to higher proportion of participants developing a new pressure ulcer compared with alternating pressure (active) air surfaces on operating tables and… (low certainty).

1 finding from 1 review

Reactive gel surfaces on operating tables followed by foam surfaces on ward beds vs alternating pressure (active) air surfaces on operating tables and subsequently on ward beds

Time to pressure ulcer development · preventing pressure ulcers

The review found no eligible studies for this question.

1 finding from 1 review

Reactive gel surfaces on operating tables followed by foam surfaces on ward beds vs alternating pressure (active) air surfaces on operating tables and subsequently on ward beds

Support surface associated patient comfort · preventing pressure ulcers

The review found no eligible studies for this question.

1 finding from 1 review

Reactive gel surfaces on operating tables followed by foam surfaces on ward beds vs alternating pressure (active) air surfaces on operating tables and subsequently on ward beds

Health‐related quality of life · preventing pressure ulcers

The review found no eligible studies for this question.

1 finding from 1 review

Reactive gel surfaces on operating tables followed by foam surfaces on ward beds vs alternating pressure (active) air surfaces on operating tables and subsequently on ward beds

Cost‐effectiveness · preventing pressure ulcers

The review found no eligible studies for this question.

1 finding from 1 review

PET-CT following chemoradiotherapy (neck dissection only if no/incomplete response) vs Planned neck dissection before or after chemoradiotherapy

Recurrence · Adults with oral cavity or oropharyngeal cancer with nodal disease (stage N2 or N3)
1 finding from 1 review

PET-CT following chemoradiotherapy (neck dissection only if no/incomplete response) vs Planned neck dissection before or after chemoradiotherapy

Total mortality · Adults with oral cavity or oropharyngeal cancer with nodal disease (stage N2 or N3)

PET-CT following chemoradiotherapy (neck dissection only if… showed no clear difference in total mortality compared with planned neck dissection before or after chemoradiotherapy (moderate certainty).

1 finding from 1 review

PET-CT following chemoradiotherapy (neck dissection only if no/incomplete response) vs Planned neck dissection before or after chemoradiotherapy

Locoregional recurrence · Adults with oral cavity or oropharyngeal cancer with nodal disease (stage N2 or N3)

PET-CT following chemoradiotherapy (neck dissection only if… showed no clear difference in locoregional recurrence compared with planned neck dissection before or after chemoradiotherapy (moderate certainty).

1 finding from 1 review

PET-CT following chemoradiotherapy (neck dissection only if no/incomplete response) vs Planned neck dissection before or after chemoradiotherapy

Adverse events associated with treatment · Adults with oral cavity or oropharyngeal cancer with nodal disease (stage N2 or N3)
1 finding from 1 review

PET-CT following chemoradiotherapy (neck dissection only if no/incomplete response) vs Planned neck dissection before or after chemoradiotherapy

Disease-free survival · Adults with oral cavity or oropharyngeal cancer with nodal disease (stage N2 or N3)
1 finding from 1 review

Colour clinical examination (visual shade categorization: yellow, light brown, dark brown, black) vs Hardness clinical examination (tactile texture categorization: soft, medium/leathery, hard)

Discriminant power for caries severity: effect size (f) for microbial load (log10 CFU) between lesion categories · Patients with dentine carious lesions (deciduous/permanent teeth; children and adults)

The weighted effect size favoured hardness (f=2.62) over colour (f=0.46) for discriminating microbial load, supporting hardness as the more reliable examination (ungraded).

1 finding from 1 review

Colour clinical examination (visual shade categorization: yellow, light brown, dark brown, black) vs Hardness clinical examination (tactile texture categorization: soft, medium/leathery, hard)

Discriminant power for caries severity: mean difference in log10 CFU (microbial load) between lesion categories · Patients with dentine carious lesions (deciduous/permanent teeth; children and adults)

For yellow-vs-other colour compared with soft-vs-harder hardness, hardness was significantly the more discriminant test (pooled WMD -3.87, 95% CI -4.46 to -2.87; ungraded).

2 findings from 1 review

Xylitol (low-intensity sweetener/sugar alcohol) in food products (chewing gum, milk, candy, or tablets) vs no intervention

Change in Mutans streptococci (MS) count in dental plaque · healthy people

Xylitol significantly reduced Mutans streptococci in dental plaque compared with no treatment (SMD -0.73, 95% CI -1.09 to -0.37; 5 trials, I2=53%; not GRADE-rated).

1 finding from 1 review

Dietary advice on how to achieve a healthy diet for infants (tailored advice focused on a diet low in saturated fat and cholesterol intake) vs usual care

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

The review found no eligible studies for this question.

2 findings from 1 review

Dietary advice on how to achieve a healthy diet for infants (tailored advice focused on a diet low in saturated fat and cholesterol intake) vs usual care

Mother self-reported oral health behaviours · For interventions, pregnant women, mothers or other caregivers of infants in the first year of life; for outcomes, children up to 6 years…
1 finding from 1 review

Dietary advice on how to achieve a healthy diet for infants (tailored advice focused on a diet low in saturated fat and cholesterol intake) vs usual care

Mother plaque (sub- and supragingival calculus) · For interventions, pregnant women, mothers or other caregivers of infants in the first year of life; for outcomes, children up to 6 years…

Dietary advice on how to achieve a healthy diet for infants… showed no clear difference in mother plaque (sub- and supragingival calculus) compared with standard care; GRADE not reported.

1 finding from 1 review

Dietary advice on how to achieve a healthy diet for infants (tailored advice focused on a diet low in saturated fat and cholesterol intake) vs usual care

Mother gingival health (mild or moderate bone loss) · For interventions, pregnant women, mothers or other caregivers of infants in the first year of life; for outcomes, children up to 6 years…

Dietary advice on how to achieve a healthy diet for infants… showed no clear difference in mother gingival health (mild or moderate bone loss) compared with standard care; GRADE not reported.

1 finding from 1 review

Dietary advice on how to achieve a healthy diet for infants (tailored advice focused on a diet low in saturated fat and cholesterol intake) vs usual care

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