Findings

What do systematic reviews say?

2,327 questions · 2,494 findings · 87 reviews · Oral Health

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No studies found 450 · 18%GRADE not reported 1,487 · 59.6%Very low 385 · 15.4%Low 121 · 4.9%Moderate 50 · 2%High 1 · 0%

Reservoir biteguard device releasing a saliva substitute (with KY jelly + Saliva Orthana) vs Biteguard without reservoir (with KY jelly + Saliva Orthana)

Oral health (oral impacts on daily performances) · Adults seeking treatment for the symptom of dry mouth (xerostomia) due to any cause (e.g. medication, Sjogren's syndrome, radiotherapy,…

1 finding from 1 review

Interventions for the management of dry mouth: topical therapies 2011 · Cochrane All outcomes
More in the reservoir group experienced relief of an oral impact and fewer a new impact (OIDP), but no difference in the total impact score between groups.
1 study · 86 participants
GRADE not reported

Topical interventions (sucralfate, interferon-alpha, cyclosporin A) vs placebo

Episode frequency associated with oral ulcers · People with Behcet's disease with a history of recurrent oral aphthous-type (RAS-type) ulcers diagnosed clinically; primary care

1 finding from 1 review

Interventions for managing oral ulcers in Behçet's disease 2014 · Cochrane All outcomes
SoF (topical interventions vs placebo), grouped comment spanning all four listed outcomes (verbatim): "5 placebo-controlled trials evaluated topical interventions (sucralfate suspension (2 trials), interferon-alpha (2…
Studies not reported
GRADE not reported

Topical interventions (sucralfate, interferon-alpha, cyclosporin A) vs placebo

Safety of the intervention (adverse effects) · People with Behcet's disease with a history of recurrent oral aphthous-type (RAS-type) ulcers diagnosed clinically; primary care

1 finding from 1 review

Interventions for managing oral ulcers in Behçet's disease 2014 · Cochrane All outcomes
SoF (topical interventions vs placebo), grouped comment spanning all four listed outcomes (verbatim): "5 placebo-controlled trials evaluated topical interventions (sucralfate suspension (2 trials), interferon-alpha (2…
Studies not reported
GRADE not reported

Topical interventions (sucralfate, interferon-alpha, cyclosporin A) vs placebo

Pain associated with oral ulcers · People with Behcet's disease with a history of recurrent oral aphthous-type (RAS-type) ulcers diagnosed clinically; primary care

1 finding from 1 review

Interventions for managing oral ulcers in Behçet's disease 2014 · Cochrane All outcomes
SoF (topical interventions vs placebo), grouped comment spanning all four listed outcomes (verbatim): "5 placebo-controlled trials evaluated topical interventions (sucralfate suspension (2 trials), interferon-alpha (2…
Studies not reported
GRADE not reported

Topical interventions (sucralfate, interferon-alpha, cyclosporin A) vs placebo

Episode duration associated with oral ulcers · People with Behcet's disease with a history of recurrent oral aphthous-type (RAS-type) ulcers diagnosed clinically; primary care

1 finding from 1 review

Interventions for managing oral ulcers in Behçet's disease 2014 · Cochrane All outcomes
SoF (topical interventions vs placebo), grouped comment spanning all four listed outcomes (verbatim): "5 placebo-controlled trials evaluated topical interventions (sucralfate suspension (2 trials), interferon-alpha (2…
Studies not reported
GRADE not reported

Any of the interventions (CR, SE, SW, sealing with sealant materials, Hall Technique, or NRCC) vs Each other, placebo, or no treatment

Adverse events (any type) and safety of sealant · Children and/or adults with permanent or primary teeth, vital (sensitive) pulps, and cavitated or dentine carious lesions conventionally…

The review found no eligible studies for this question.

1 finding from 1 review

Interventions for treating cavitated or dentine carious lesions 2021 · Cochrane All outcomes
None of the studies reported adverse effects.
0 studies
No studies found

Any of the interventions (CR, SE, SW, sealing with sealant materials, Hall Technique, or NRCC) vs Each other, placebo, or no treatment

Subjective evaluation of the treatments by participants · Children and/or adults with permanent or primary teeth, vital (sensitive) pulps, and cavitated or dentine carious lesions conventionally…

The review found no eligible studies for this question.

1 finding from 1 review

Interventions for treating cavitated or dentine carious lesions 2021 · Cochrane All outcomes
We found no studies reporting subjective evaluation of the treatments by participants.
0 studies
No studies found

Theory-based oral health education/promotion interventions (HBM, TPB, SCT, HAPA, TTM, PMT, SOC, PRECEDE-PROCEED, MI) vs Control (waitlist, routine/standard oral health education, or minimal intervention)

Self-efficacy related to oral health · school‐age children and adolescents

Theory-based educational interventions significantly improved oral health self-efficacy (SMD 1.49; low certainty), though between-study heterogeneity was very high.

1 finding from 1 review

Health promotion theory-based educational interventions for improving oral health in children and adolescents: a… 2025 All outcomes
Post-intervention (follow-up 4 weeks to 12 months, varies by study) · School-based and community settings; multiple countries (predominantly Iran; also Pakistan, Hong Kong, Lithuania, Thailand) · Overall
SMD 1.49 [0.99, 2.00]
10 studies · 4513 participants
Low

Theory-based oral health education/promotion interventions (HBM, TPB, SCT, HAPA, TTM, PMT, SOC, PRECEDE-PROCEED, MI) vs Control (waitlist, routine/standard oral health education, or minimal intervention)

Oral health attitudes (1-7 scale) · school‐age children and adolescents

Theory-based interventions significantly improved oral health attitude (SMD 9.32; low certainty); the very large effect warrants cautious interpretation.

1 finding from 1 review

Health promotion theory-based educational interventions for improving oral health in children and adolescents: a… 2025 All outcomes
Post-intervention (follow-up immediately after to 6 months, varies by study) · School-based and community settings; multiple countries (predominantly Iran; also Pakistan, Hong Kong, Lithuania, Thailand) · Overall
SMD 9.32 [7.08, 11.55]
3 studies · 2370 participants
Low

Theory-based oral health education/promotion interventions (HBM, TPB, SCT, HAPA, TTM, PMT, SOC, PRECEDE-PROCEED, MI) vs Control (waitlist, routine/standard oral health education, or minimal intervention)

Oral health-related quality of life · school‐age children and adolescents

Theory-based interventions significantly improved oral health-related quality of life (SMD 7.38; low certainty), with very high heterogeneity.

1 finding from 1 review

Health promotion theory-based educational interventions for improving oral health in children and adolescents: a… 2025 All outcomes
Post-intervention (follow-up 0.5 to 12 months, varies by study) · School-based and community settings; multiple countries (predominantly Iran; also Pakistan, Hong Kong, Lithuania, Thailand) · Overall
SMD 7.38 [5.57, 9.19]
4 studies · 4751 participants
Low

Theory-based oral health education/promotion interventions (HBM, TPB, SCT, HAPA, TTM, PMT, SOC, PRECEDE-PROCEED, MI) vs Control (waitlist, routine/standard oral health education, or minimal intervention)

Mean DMFT (decayed, missing, filled permanent teeth) · school‐age children and adolescents

Theory-based interventions showed no significant effect on DMFT scores (SMD -0.11; low certainty).

1 finding from 1 review

Health promotion theory-based educational interventions for improving oral health in children and adolescents: a… 2025 All outcomes
Post-intervention (follow-up 3 to 12 months, varies by study) · School-based and community settings; multiple countries (predominantly Iran; also Pakistan, Hong Kong, Lithuania, Thailand) · Overall
SMD -0.11 [-0.27, 0.04]
4 studies · 2556 participants
Low

Theory-based oral health education/promotion interventions (HBM, TPB, SCT, HAPA, TTM, PMT, SOC, PRECEDE-PROCEED, MI) vs Control (waitlist, routine/standard oral health education, or minimal intervention)

Periodontal health status · school‐age children and adolescents

Theory-based interventions significantly improved periodontal health (SMD -1.18; moderate certainty).

1 finding from 1 review

Health promotion theory-based educational interventions for improving oral health in children and adolescents: a… 2025 All outcomes
Post-intervention (follow-up 2 weeks to 6 months, varies by study) · School-based and community settings; multiple countries (predominantly Iran; also Pakistan, Hong Kong, Lithuania, Thailand) · Overall
SMD -1.18 [-1.83, -0.53]
4 studies · 3342 participants
Moderate

Theory-based oral health education/promotion interventions (HBM, TPB, SCT, HAPA, TTM, PMT, SOC, PRECEDE-PROCEED, MI) vs Control (waitlist, routine/standard oral health education, or minimal intervention)

Oral health behaviour (1-9 scale) · school‐age children and adolescents

Theory-based interventions significantly improved oral health behavior (SMD 2.58; low certainty), with very high heterogeneity.

1 finding from 1 review

Health promotion theory-based educational interventions for improving oral health in children and adolescents: a… 2025 All outcomes
Post-intervention (follow-up 0.5 to 24 months, varies by study) · School-based and community settings; multiple countries (predominantly Iran; also Pakistan, Hong Kong, Lithuania, Thailand) · Overall
SMD 2.58 [2.03, 3.12]
6 studies · 13973 participants
Low

Theory-based oral health education/promotion interventions (HBM, TPB, SCT, HAPA, TTM, PMT, SOC, PRECEDE-PROCEED, MI) vs Control (waitlist, routine/standard oral health education, or minimal intervention)

Oral health knowledge (1-9 scale) · school‐age children and adolescents

Theory-based interventions significantly improved oral health knowledge (SMD 1.09; low certainty).

1 finding from 1 review

Health promotion theory-based educational interventions for improving oral health in children and adolescents: a… 2025 All outcomes
Post-intervention (follow-up immediately after to 24 months, varies by study) · School-based and community settings; multiple countries (predominantly Iran; also Pakistan, Hong Kong, Lithuania, Thailand) · Overall
SMD 1.09 [0.80, 1.39]
7 studies · 10904 participants
Low

Theory-based oral health education/promotion interventions (HBM, TPB, SCT, HAPA, TTM, PMT, SOC, PRECEDE-PROCEED, MI) vs Control (waitlist, routine/standard oral health education, or minimal intervention)

Plaque index (PI) / oral hygiene · school‐age children and adolescents

Theory-based interventions significantly reduced dental plaque (SMD -1.92; moderate certainty).

1 finding from 1 review

Health promotion theory-based educational interventions for improving oral health in children and adolescents: a… 2025 All outcomes
Post-intervention (follow-up 1 to 24 months, varies by study) · School-based and community settings; multiple countries (predominantly Iran; also Pakistan, Hong Kong, Lithuania, Thailand) · Overall
SMD -1.92 [-2.42, -1.42]
9 studies · 12562 participants
Moderate

Systemic interventions (aciclovir, thalidomide, corticosteroids, rebamipide, etanercept, colchicine, interferon-alpha) vs placebo

Safety of the intervention (adverse effects) · People with Behcet's disease with a history of recurrent oral aphthous-type (RAS-type) ulcers diagnosed clinically; primary care

1 finding from 1 review

Interventions for managing oral ulcers in Behçet's disease 2014 · Cochrane All outcomes
SoF 2 (systemic interventions vs placebo), grouped comment spanning all four listed outcomes (verbatim; the review's wording "topical" is a typo for systemic): "8 placebo-controlled trials evaluated topical…
Studies not reported
GRADE not reported

Systemic interventions (aciclovir, thalidomide, corticosteroids, rebamipide, etanercept, colchicine, interferon-alpha) vs placebo

Episode duration associated with oral ulcers · People with Behcet's disease with a history of recurrent oral aphthous-type (RAS-type) ulcers diagnosed clinically; primary care

1 finding from 1 review

Interventions for managing oral ulcers in Behçet's disease 2014 · Cochrane All outcomes
SoF 2 (systemic interventions vs placebo), grouped comment spanning all four listed outcomes (verbatim; the review's wording "topical" is a typo for systemic): "8 placebo-controlled trials evaluated topical…
Studies not reported
GRADE not reported

Systemic interventions (aciclovir, thalidomide, corticosteroids, rebamipide, etanercept, colchicine, interferon-alpha) vs placebo

Pain associated with oral ulcers · People with Behcet's disease with a history of recurrent oral aphthous-type (RAS-type) ulcers diagnosed clinically; primary care

1 finding from 1 review

Interventions for managing oral ulcers in Behçet's disease 2014 · Cochrane All outcomes
SoF 2 (systemic interventions vs placebo), grouped comment spanning all four listed outcomes (verbatim; the review's wording "topical" is a typo for systemic): "8 placebo-controlled trials evaluated topical…
Studies not reported
GRADE not reported

Systemic interventions (aciclovir, thalidomide, corticosteroids, rebamipide, etanercept, colchicine, interferon-alpha) vs placebo

Episode frequency associated with oral ulcers · People with Behcet's disease with a history of recurrent oral aphthous-type (RAS-type) ulcers diagnosed clinically; primary care

1 finding from 1 review

Interventions for managing oral ulcers in Behçet's disease 2014 · Cochrane All outcomes
SoF 2 (systemic interventions vs placebo), grouped comment spanning all four listed outcomes (verbatim; the review's wording "topical" is a typo for systemic): "8 placebo-controlled trials evaluated topical…
Studies not reported
GRADE not reported

Light vibrational forces (LVF) vs Conventional orthodontic appliance treatment

Costs · Adolescents and adults with malocclusion undergoing orthodontic treatment with fixed or removable appliances

The review found no eligible studies for this question.

1 finding from 1 review

Non‐surgical adjunctive interventions for accelerating tooth movement in patients undergoing orthodontic treatment 2023 · Cochrane All outcomes
Cost of treatment was not investigated in any of the included studies.
Studies not reported
No studies found