Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

366 questions · 703 findings · 59 reviews · Oral Health

No studies found 20 · 2.8%GRADE not reported 630 · 89.6%Very low 27 · 3.8%Low 12 · 1.7%Moderate 7 · 1%High 7 · 1%

Chlorhexidine chewing gum 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

Chlorhexidine varnish vs placebo or no treatment

Dental caries: dmfs increment (primary teeth) · Children and adolescents below 18 years at study start (included studies: children from birth to 15 years), with mixed, permanent or…
1 finding from 1 review

Toluidine blue (visual staining) vs No screening

Outcome not reported · Planned population: general population or high-risk / opportunistic screening groups (no eligible study)

The review found no eligible studies for this question.

1 finding from 1 review

Brush biopsy (oral cytology) vs No screening

Outcome not reported · Planned population: general population or high-risk / opportunistic screening groups (no eligible study)

The review found no eligible studies for this question.

1 finding from 1 review

Fluorescence imaging / light-based techniques vs No screening

Outcome not reported · Planned population: general population or high-risk / opportunistic screening groups (no eligible study)

The review found no eligible studies for this question.

1 finding from 1 review

Low-gold (Midas) or silver-palladium (Albacast) alloy FDP vs High-gold content control alloy (JS C) FDP

Visual marginal discrepancy (3 years) · Patients receiving single crowns and FDPs; split-mouth

Low-gold (Midas) or silver-palladium (Albacast) alloy FDP showed no clear difference in visual marginal discrepancy (3 years) compared with high-gold content control alloy (JS C) FDP; GRADE not reported.

1 finding from 1 review

Alternative alloy FDP (e.g., Ceramalloy II / base-metal / palladium-silver) vs High-gold content control alloy FDP (Olympia)

Restoration survival · Patients receiving crowns and FDPs; split-mouth, 10-year

Alternative alloy FDP (e.g., Ceramalloy II / base-metal /… led to higher restoration survival (Ceramalloy II versus Olympia) compared with high-gold content control alloy FDP (Olympia); GRADE not reported.

1 finding from 1 review

Titanium framework FDP vs High-gold content alloy framework FDP

Unacceptable restoration (poor marginal integrity / restoration removal) · Partially edentulous patients receiving tooth-supported FDPs

Titanium framework FDP led to higher unacceptable restoration (poor marginal integrity / restoration… compared with high-gold content alloy framework FDP; GRADE not reported.

1 finding from 1 review

Low dose rate interstitial radiotherapy vs High dose rate interstitial radiotherapy

Locoregional control · People with primary squamous cell carcinoma of the oral cavity (ICD-O C01-C06) or oropharynx (ICD-O C09-C10); head and neck cancer trials…

Low dose rate interstitial radiotherapy showed no clear difference in locoregional control compared with high dose rate interstitial radiotherapy; GRADE not reported.

1 finding from 1 review

Prophylactic valaciclovir (lower dose) vs Prophylactic valaciclovir (higher dose)

Presence/absence of HSV oral lesions · Patients being treated for cancer (acute leukaemia; chemotherapy or stem-cell transplantation)

Prophylactic valaciclovir (lower dose) showed no clear difference in presence/absence of HSV oral lesions compared with prophylactic valaciclovir (higher dose); GRADE not reported.

1 finding from 1 review

Prophylactic valaciclovir (lower dose) vs Prophylactic valaciclovir (higher dose)

Viral isolates · Patients being treated for cancer (acute leukaemia; chemotherapy or stem-cell transplantation)
1 finding from 1 review

Prophylactic valaciclovir (lower dose) vs Prophylactic valaciclovir (higher dose)

Adverse effects · Patients being treated for cancer (acute leukaemia; chemotherapy or stem-cell transplantation)
1 finding from 1 review

11-16 remaining teeth vs 25-32 remaining teeth

Atherosclerotic cardiovascular disease (ACVD)-related events (morbidity and mortality) · Adults (any age) with a known number of remaining teeth, followed prospectively in cohort studies

In prospective cohorts, adults with 11-16 teeth had a higher cumulative incidence of ACVD-related events than adults with 25-32 teeth (RR 2.27, 95% CI 1.55 to 3.32; 4 cohort studies, I2=87%); GRADE per-analysis ratings reported in Supplementary File 7 (not available in provided sources).

1 finding from 1 review

Edentulous (0 remaining teeth) vs 1-32 remaining teeth

All-cause mortality (ACM) · Adults (any age) with a known number of remaining teeth, followed prospectively in cohort studies

In prospective cohorts, the multivariable-adjusted HR for all-cause mortality in edentulous adults (0 teeth) vs adults with 1-32 teeth was 1.30 (95% CI 1.21 to 1.40; 7 studies, I2=20%); GRADE per-analysis ratings reported in Supplementary File 7 (not available in provided sources).

4 findings from 1 review
Show 1 more finding

17-24 remaining teeth vs 25-32 remaining teeth

Atherosclerotic cardiovascular disease (ACVD)-related events (morbidity and mortality) · Adults (any age) with a known number of remaining teeth, followed prospectively in cohort studies

In prospective cohorts, adults with 17-24 teeth had a higher cumulative incidence of ACVD-related events than adults with 25-32 teeth (RR 1.73, 95% CI 1.22 to 2.45; 4 cohort studies, I2=87%); GRADE per-analysis ratings reported in Supplementary File 7 (not available in provided sources).

1 finding from 1 review

0-19 remaining teeth vs 20-32 remaining teeth

All-cause mortality (ACM) · Adults (any age) with a known number of remaining teeth, followed prospectively in cohort studies

In prospective cohorts, the crude HR for all-cause mortality in adults with 0-19 teeth vs adults with 20-32 teeth was 2.47 (95% CI 2.40 to 2.54; 2 studies, I2=0%); GRADE per-analysis ratings reported in Supplementary File 7 (not available in provided sources).

4 findings from 1 review
Show 1 more finding

1-19 remaining teeth vs 20-32 remaining teeth

All-cause mortality (ACM) · Adults (any age) with a known number of remaining teeth, followed prospectively in cohort studies

In prospective cohorts, adults with 1-19 teeth had a higher cumulative incidence of all-cause mortality than adults with 20-32 teeth (RR 1.76, 95% CI 1.41 to 2.19; 8 cohort studies, I2=94%); GRADE per-analysis ratings reported in Supplementary File 7 (not available in provided sources).

1 finding from 1 review

Edentulous (0 remaining teeth) vs 1-32 remaining teeth

Atherosclerotic cardiovascular disease (ACVD)-related events (morbidity and mortality) · Adults (any age) with a known number of remaining teeth, followed prospectively in cohort studies

In prospective cohorts, the multivariable-adjusted HR for ACVD-related events in edentulous adults (0 teeth) vs adults with 1-32 teeth was 1.21 (95% CI 1.07 to 1.36; 5 studies, I2=35%); GRADE per-analysis ratings reported in Supplementary File 7 (not available in provided sources).

4 findings from 1 review
Show 1 more finding