Oral cancer risk · People with and without more than 15 missing teeth
More than 15 missing teeth was associated with higher odds of oral cancer.
1 finding from 1 review
OR 1.91 [1.01, 3.62]
5 studies
GRADE not reported
Oral disease burden, slum vs non-slum urban comparison · Adult residents of slums and non-slum urban settings of LMICs
Where compared, oral disease burden is generally higher in slums than non-slum urban/national populations (5 studies; 1 found no difference); ungraded.
1 finding from 1 review
Intervention not reported
Oral cancer (OC)
The intervention led to higher oral cancer (OC); GRADE not reported.
1 finding from 1 review
OR 2.63 [1.92, 3.62]
7 studies
GRADE not reported
Poor (inadequate) oral hygiene (prevalence) · Children (<18 years) with intellectual and developmental disabilities (IDD) in India
Poor oral hygiene affects about 38% of children with IDD in India (pooled prevalence 0.38, 95% CI 0.21-0.59; high heterogeneity; ungraded).
1 finding from 1 review
Oral disease prevalence · Adult residents of slums and non-slum urban settings of LMICs
Oral disease prevalence was generally high and worse in slum settings where compared, but no meta-analysis was conducted.
1 finding from 1 review
no estimate extracted
18 studies
GRADE not reported
Self-perceived (self-rated) oral health status · Adult residents of slums and non-slum urban settings of LMICs
Most participants perceive their oral health as satisfactory (one study 39%), more so among younger, male, higher-SES and employed people; ungraded.
1 finding from 1 review
Oral health practices · Adult residents of slums and non-slum urban settings of LMICs
Toothbrush and toothpaste use was common, but lower in disadvantaged or slum populations where compared.
1 finding from 1 review
no estimate extracted
11 studies
GRADE not reported
Self-perceived (self-rated) oral health status · Adult residents of slums and non-slum urban settings of LMICs
Most participants reported positive perceptions of oral health, despite observed disease burden.
1 finding from 1 review
no estimate extracted
6 studies
GRADE not reported
Oral health-related quality of life · Indian elderly
One study found edentulism did not affect OHRQoL (dichotomous); ungraded.
3 findings from 1 review
Edentulism and QoL (dichotomous): edentulism did not affect OHRQoL (Shivakumar 2018). Single study, not pooled.
1 study
GRADE not reported
Edentulism and QoL (continuous, GOHAI/WHOQoL): one study reported edentulism negatively influenced QoL (Marina 2019), one found no effect (Appukuttan 2016). Not pooled.
2 studies
GRADE not reported
Edentulism and QoL (continuous, OHIP-14): no significant association between individuals with and without edentulism (Ajai 2020). Single study, not pooled.
1 study
GRADE not reported
Oral health-related quality of life · Adolescents (10-19 years)
Safe housing and favorable household conditions are associated with better OHRQoL in adolescents (narrative synthesis; no pooled estimate or GRADE rating).
1 finding from 1 review
Oral health-related quality of life · Indian children, adolescents and adults
One GOHAI study found no significant difference in OHRQoL by malocclusion status; ungraded.
3 findings from 1 review
Malocclusion and QoL (continuous, GOHAI): no significant difference in OHRQoL between individuals with and without malocclusion (Appukuttan 2016). Single study, not pooled.
1 study
GRADE not reported
OR 5.44 [1.61, 18.39]
6 studies · 3720 participants
Very low
Malocclusion and QoL (continuous, OHIP-14/ECOHIS/FIS): malocclusion had a significant negative influence on OHRQoL (Vinayagamoorthy 2020, Mary 2019). Not pooled.
2 studies
GRADE not reported
Oral health-related quality of life · Indian children and adults
Two studies found bruxers have poorer OHRQoL than non-bruxers; narrative, ungraded.
1 finding from 1 review
Bruxism and QoL (continuous, OHIP-14): bruxers have poorer OHRQoL than non-bruxers (Thetakala 2018, Suguna 2020). Two studies, 284 individuals; not pooled.
2 studies · 284 participants
GRADE not reported
Oral health-related quality of life · Adolescents (10-19 years)
The umbrella review reported that toothache has a high impact on oral health-related quality of life.
1 finding from 1 review
no estimate extracted
Studies not reported
GRADE not reported
Oral health-related quality of life · Adolescents (10-19 years)
The umbrella review reported insufficient scientific evidence to support an association between dental agenesis and oral health-related quality of life.
2 findings from 1 review
Oral health-related quality of life · Adolescents (10-19 years)
Complicated traumatic dental injuries (pulp exposure or tooth darkening) worsen OHRQoL in adolescents, while uncomplicated injuries show little impact (narrative synthesis; no pooled estimate or GRADE rating).
1 finding from 1 review
Oral health-related quality of life · Adolescents (10-19 years)
The umbrella review reported that malocclusion negatively affects oral health-related quality of life.
1 finding from 1 review
no estimate extracted
Studies not reported
GRADE not reported
Oral health-related quality of life · Adolescents (10-19 years)
The umbrella review reported worse oral health-related quality-of-life scores with severe periodontitis.
1 finding from 1 review
no estimate extracted
Studies not reported
GRADE not reported
Intervention not reported
Oral health practices
1 finding from 1 review
Oral health-related quality of life · Indians
In adolescents (10-19 years), dental caries was associated with poorer OHRQoL (pooled OR 3.92; 5 studies); ungraded.
5 findings from 1 review
Show 2 more findings
Oral health-related quality of life · Adolescents (10-19 years)
The umbrella review reported worse oral health-related quality of life with greater caries severity.
1 finding from 1 review
no estimate extracted
Studies not reported
GRADE not reported