Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,890 questions · 3,917 findings · 272 reviews · Oral Health

No studies found 429 · 11%GRADE not reported 2,657 · 67.8%Very low 512 · 13.1%Low 219 · 5.6%Moderate 80 · 2%High 20 · 0.5%

Fluoride gel (topically applied; operator- or self-applied; any fluoride agent/concentration; frequency at least once a year) vs placebo or no treatment

Mucosal irritation / oral soft tissue allergic reaction (signs of sensitivity) · Children and adolescents aged 16 years or less

The review found no eligible studies for this question.

1 finding from 1 review

Xylitol candy (7.5 g/day) vs Control (sorbitol) candy

Caries increment (dmfs, primary and permanent teeth combined) · Children (mixed dentition; baseline about 8 years)
1 finding from 1 review

Oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed ice held in the mouth during cancer treatment) vs no intervention or control intervention (control)

Oral mucositis (mean severity on WHO 0 to 4 scale) · All patients with cancer who are receiving treatment

It is very uncertain whether oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed… changes oral mucositis (mean severity on WHO 0 to 4 scale) compared with control (no treatment or standard/usual oral care, e.g. saline rinse) (very low certainty).

1 finding from 1 review

Oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed ice held in the mouth during cancer treatment) vs no intervention or control intervention (control)

Oral pain · All patients with cancer who are receiving treatment
3 findings from 1 review

Chlorhexidine mouthrinse vs Placebo or no intervention (including routine care)

Outcome not reported · Children and adolescents below 18 years at study start (included studies: children from birth to 15 years), with mixed, permanent or…

The review found no eligible studies for this question.

1 finding from 1 review

Initiation of water fluoridation (artificial or natural) vs Low/non-fluoridated water (0.4 ppm fluoride or less)

Disparities in caries across socioeconomic status (SES) · People of all ages in a community setting; the included caries studies were all in children aged 3 to 16 years
1 finding from 1 review
  • There is insufficient information to determine whether initiation of a water fluoridation programme results in a change in disparities in caries levels across SES. Data from 3 observational studies (participants not…
    3 studies · 35399 participants
    Low

Oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed ice held in the mouth during cancer treatment) vs no intervention or control intervention (control)

Oral mucositis (any severity) · All patients with cancer who are receiving treatment

Oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed… showed no clear difference in oral mucositis (any severity) compared with control (no treatment or standard/usual oral care, e.g. saline rinse) (low certainty).

3 findings from 1 review

Oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed ice held in the mouth during cancer treatment) vs no intervention or control intervention (control)

Number of days in hospital (duration of hospitalisation) · All patients with cancer who are receiving treatment

The review found no eligible studies for this question.

2 findings from 1 review

Initiation of water fluoridation (artificial or natural) vs Low/non-fluoridated water (0.4 ppm fluoride or less)

Change in proportion of caries-free children (permanent teeth) · People of all ages in a community setting; the included caries studies were all in children aged 3 to 16 years

Initiation of water fluoridation (artificial or natural) may leads to higher change in proportion of caries-free children (permanent teeth) compared with low/non-fluoridated water (0.4 ppm fluoride or less) (low certainty).

1 finding from 1 review

Chlorhexidine gel (0.12%) vs no treatment

Pain, quality of life, patient satisfaction or costs · Children and adolescents below 18 years at study start (included studies: children from birth to 15 years), with mixed, permanent or…

The review found no eligible studies for this question.

1 finding from 1 review

Xylitol lozenges (5 g/day) vs placebo control

Adverse effects (sores in the mouth, cramps, bloating, constipation, flatulence, loose stool or diarrhoea) · adults
1 finding from 1 review

Xylitol tablets (200 to 600 mg/day) via slow-release pacifier/dummy vs Control (sorbitol) tablets

Number of infants with a caries increment (dmfs) · Infants (primary teeth)

It is very uncertain whether xylitol tablets (200 to 600 mg/day) via slow-release pacifier/dummy changes number of infants with a caries increment (dmfs) compared with control (sorbitol) tablets (very low certainty).

1 finding from 1 review

Cryotherapy (ice chips) 30 minutes vs Cryotherapy (ice chips) 60 minutes

Oral mucositis (severe) · Adults with solid cancers receiving fluorouracil (5FU) and leucovorin

It is very uncertain whether oral cryotherapy for 30 minutes changes oral mucositis (severe) compared with oral cryotherapy for 60 minutes (very low certainty).

1 finding from 1 review

Oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed ice held in the mouth during cancer treatment) vs Chlorhexidine rinse

Oral mucositis (any severity) · Adults with solid cancers receiving fluorouracil (5FU) and leucovorin

It is very uncertain whether oral cryotherapy (ice chips, ice-cold water, ice cubes or crushed… changes oral mucositis (any severity) compared with chlorhexidine rinse (very low certainty).

1 finding from 1 review