Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,411 questions · 5,986 findings · 226 reviews · Oral Health

No studies found 1,305 · 21.8%GRADE not reported 2,988 · 49.9%Very low 1,030 · 17.2%Low 476 · 8%Moderate 156 · 2.6%High 31 · 0.5%

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Preformed crown (any material; conventional technique or Hall Technique) vs Filling (any material; with or without complete carious tissue excavation; with or without pulp treatment)

Discomfort associated with the procedure · Children with decayed primary molar teeth

Preformed crown (any material; conventional technique or Hall… probably leads to lower discomfort associated with the procedure compared with filling (any material; with or without complete carious tissue… (moderate 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

Psychological intervention + palatal arch vs Psychological intervention + palatal crib

Sucking cessation (short term) · Children with a non-nutritive sucking habit (digit or pacifier)

Psychological intervention + palatal arch led to lower sucking cessation (short term) compared with psychological intervention + palatal crib; GRADE not reported.

1 finding 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

EGFR monoclonal antibody (cetuximab or nimotuzumab) plus standard therapy (radiotherapy or chemoradiotherapy) vs Standard therapy alone (radiotherapy or chemoradiotherapy)

Overall survival · People with squamous cell carcinoma of the oral cavity or oropharynx

EGFR monoclonal antibody (cetuximab or nimotuzumab) plus standard… probably leads to lower overall survival compared with standard therapy alone (radiotherapy or chemoradiotherapy) (moderate certainty).

1 finding from 1 review

Micro-invasive treatment (proximal sealing or resin infiltration): resin sealant, glass ionomer sealant, polyurethane/adhesive patch, or resin infiltration vs Non-invasive / control treatment

Caries (lesion) progression (radiographic) · Dentate children and adults with non-cavitated proximal caries lesions extending into enamel or dentine (not pulp) in primary or permanent…

Micro-invasive treatment (proximal sealing or resin infiltration):… probably leads to lower caries (lesion) progression measured by pairwise reading of… compared with non-invasive measures (e.g. fluoride varnish, flossing/oral hygiene… (moderate certainty).

4 findings from 1 review
Show 1 more finding

Non-specific immunotherapy (recombinant interleukin-2 or BCG cell wall preparation) plus standard therapy vs Standard therapy alone (radiotherapy or chemoradiotherapy)

Overall survival · People with squamous cell carcinoma of the oral cavity or oropharynx
2 findings 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

Single full-coverage metal-ceramic crown over composite core and post vs Direct adhesive composite restoration with post (conventional filling, no crown)

Catastrophic failure of the restored tooth or restoration leading directly to extraction · People with a permanent tooth that has undergone endodontic (root canal) treatment
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 (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

Preformed crown (any material; conventional technique or Hall Technique) vs Filling (any material; with or without complete carious tissue excavation; with or without pulp treatment)

Major failure · Children with decayed primary molar teeth
2 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

Endodontic therapy (surgical or non-surgical) performed with the aid of one or more magnification devices (surgical microscope, endoscope or magnifying loupes) vs The same endodontic therapy performed without magnification devices (without visual enhancers)

Removal of broken (fractured) instruments from the root canal · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment

The review found no eligible studies for this question.

1 finding from 1 review
  • Magnification devices for endodontic therapy 2015 · Cochrane All outcomes
    No included study assessed this outcome; the review notes that such secondary outcomes were only sporadically reported and were never statistically assessed.
    Studies not reported
    No studies found

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

Resin sealant (one micro-invasive treatment) vs Resin infiltration alone

Caries (lesion) progression (radiographic) · Dentate children and adults with non-cavitated proximal caries lesions extending into enamel or dentine (not pulp) in primary or permanent…
1 finding from 1 review