Findings

What do systematic reviews say?

5 questions · 5 findings · 4 reviews · Oral Health

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No studies found 1 · 20%GRADE not reported 3 · 60%Very low 0 · 0%Low 1 · 20%Moderate 0 · 0%High 0 · 0%

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

Educational intervention with information and practical components (theoretical oral health education plus practical skills training) for nursing staff and/or residents vs (Optimised) usual care

Oral health-related quality of life · Nursing home residents (mean age 78.3 to 86.0 years; more than 66% women; 62.1% to 87.3% with dental prostheses)

The review found no eligible studies for this question.

1 finding from 1 review

Oral health educational interventions for nursing home staff and residents 2016 · Cochrane All outcomes
SoF row 'Oral health-related quality of life': Illustrative risks -, relative effect -, participants/studies -, quality -; Comment: Outcome not reported. Not measured in any included study.
0 studies
No studies found

Zinc vs placebo

Health‐related quality of life · Patients with taste disturbances (dysgeusia/hypogeusia; idiopathic, zinc-deficient, or secondary to chronic renal failure)

1 finding from 1 review

Interventions for managing taste disturbances 2017 · Cochrane All outcomes
Results (health-related quality of life): None of the studies reported data on health-related quality of life. Heckmann 2005 (zinc) reported that signs of depression were less severe (Beck Depression Inventory P<0.05;…
1 study
GRADE not reported

Acupuncture vs sham control

Health‐related quality of life · Patients with idiopathic dysgeusia and hypogeusia

1 finding from 1 review

Interventions for managing taste disturbances 2017 · Cochrane All outcomes
Results (health-related quality of life): Brandt 2008 assessed HRQoL in dysgeusia patients and reported significant improvement in psychological symptoms in the acupuncture group and increased quality of life in both…
1 study
GRADE not reported

Light vibrational forces (LVF) vs Conventional orthodontic appliance treatment

Oral health-related quality of life · Adolescents and adults with malocclusion undergoing orthodontic treatment with fixed or removable appliances

1 finding from 1 review

Non‐surgical adjunctive interventions for accelerating tooth movement in patients undergoing orthodontic treatment 2023 · Cochrane All outcomes
Katchooi 2018 (unclear risk of bias): light vibrational forces had no statistically significant (P>0.05) effect on OHRQoL when used with orthodontic aligners.
1 study · 27 participants
GRADE not reported