Findings

What do systematic reviews say?

104 questions · 140 findings · 19 reviews

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No studies found 11 · 7.9%GRADE not reported 103 · 73.6%Very low 14 · 10%Low 2 · 1.4%Moderate 5 · 3.6%High 5 · 3.6%

Malocclusion vs No malocclusion

Poor oral health-related quality of life (OHRQoL) · Adolescents (10-19 years)

Malocclusions probably have a negative effect on OHRQoL in adolescents, after adjustment for confounders (moderate certainty).

1 finding from 1 review

Malocclusions and quality of life among adolescents: a systematic review and meta-analysis. 2023 All outcomes
Schools and dental clinics (multiple countries)
Impaired OHRQoL, qualitative synthesis: relative effect not estimable across the 13 studies (13,864 participants); moderate quality of evidence (GRADE).
13 studies · 13864 participants
Moderate

Alginate (two stage-two step final/wash impression) vs Silicone elastomer (two stage-two step)

Oral health-related quality of life · Completely edentulous people

Alginate (two stage-two step final/wash impression) may leads to higher participant-reported oral health-related quality of life… compared with silicone elastomer (two stage-two step) (low certainty).

1 finding from 1 review

Final‐impression techniques and materials for making complete and removable partial dentures 2018 · Cochrane All outcomes
2 weeks
MD 7.20 [2.71, 11.69]
1 study · 144 participants
Low

Dental caries vs Caries-free controls

Oral health-related quality of life · Indian children aged 3-5 years

In children aged 3-5 years, early childhood caries was significantly associated with poorer OHRQoL (narrative; 3 studies); ungraded.

1 finding from 1 review

Impact of oral conditions on oral health-related quality of life among Indians- a systematic review and Meta-analysis. 2023 All outcomes
India; community-based and institutional settings across multiple states · Children 3-5 years (ECOHIS/Michigan, continuous)
Subgroup children 3-5 years (continuous, ECOHIS/Michigan): early childhood caries significantly associated with poorer OHRQoL (Singh N 2020, Ghanghas 2019, Jaggi 2019); not pooled.
3 studies
GRADE not reported

Disability (developmental, intellectual, or sensory) vs Persons without disabilities

Oral health-related quality of life · Persons with disabilities (children and adults with autism, Down syndrome, cerebral palsy, hearing impairment, or multiple disabilities)…

Persons with disabilities in Saudi Arabia report poorer overall oral health-related quality of life and greater oral-health impact than those without disabilities, synthesized narratively without a pooled estimate (ungraded).

1 finding from 1 review

Disabilities and Disparities in Oral Health-Related Quality of Life: A Systematic Review and Meta-Analysis in Saudi… 2024 All outcomes
Cross-sectional · Autism centres, dental hospital, disability centres, hospital, and public schools across Saudi Arabia (Riyadh, Jeddah, Qassim, Abha)
Narrative synthesis (no pooled estimate). PWDs reported reduced functional, emotional, and social well-being and greater oral-health impact on quality of life. AlJameel 2021 (Down syndrome): 34.9% of children and 46%…
Studies not reported
GRADE not reported