Dental caries · Adults (≥18 years)
After adjustment for confounders, obesity/overweight was not associated with dental caries (OR 1.00, 95% CI 0.89 to 1.12; ungraded).
9 findings from 1 review
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and meta-analysis. 2025 All outcomesPopulation-based cross-sectional studies; adults ≥18 years; 6 countries (Turkey, Portugal, China, Japan, Saudi Arabia, Israel, South Korea) · By confounder adjustment: adjusted
OR 1.00 [0.89, 1.12]
Studies not reported
GRADE not reported
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and meta-analysis. 2025 All outcomesPopulation-based cross-sectional studies; adults ≥18 years; 6 countries (Turkey, Portugal, China, Japan, Saudi Arabia, Israel, South Korea) · By region: West Asia
OR 1.23 [0.96, 1.50]
Studies not reported
GRADE not reported
Multimorbidity patterns of dental caries and obesity/overweight among adults: a systematic review and meta-analysis. 2025 All outcomesPopulation-based cross-sectional studies; adults ≥18 years; 6 countries (Turkey, Portugal, China, Japan, Saudi Arabia, Israel, South Korea) · By BMI classification: overweight (vs study-defined non-overweight: normal or low weight)
OR 0.99 [0.98, 1.00]
Studies not reported
GRADE not reported
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Prevalence and severity of oral and TMJ diseases/conditions (periodontal status and dental caries) · Children and adolescents with juvenile idiopathic arthritis (JIA)
Some studies suggested greater JIA disease activity/severity (and certain medications) was associated with worse periodontal and caries outcomes, but small samples meant no solid conclusion could be drawn (ungraded).
1 finding from 1 review
Odds of higher caries (DMFT) category · 12-year-old children across European countries (national/regional epidemiological surveys, 2011-2022)
In the adjusted ordinal model geographical location was not independently significant for DMFT category (OR 0.57, 95% CI 0.24 to 1.35); not GRADE-rated.
1 finding from 1 review
Odds of higher caries (DMFT) category · 12-year-old children across European countries (national/regional epidemiological surveys, 2011-2022)
HDI was not independently associated with DMFT category in the adjusted model (OR 1.82, 95% CI 0.32 to 10.47); not GRADE-rated.
1 finding from 1 review
Dental caries (association with secondary/higher maternal education) · Children (deciduous and/or permanent dentition) in low- and middle-income countries
Secondary/higher maternal education showed no significant association with dental caries (OR 0.96, 95% CI 0.64 to 1.44; 7 studies; not GRADE-rated).
1 finding from 1 review
Secondary/higher maternal education prevalence (among children with caries) · Children with dental caries (deciduous and/or permanent dentition) in low- and middle-income countries
About 45% of children with caries in LMICs had mothers with secondary or higher education (pooled prevalence 0.450, 95% CI 0.330 to 0.572; 7 studies; not GRADE-rated).
1 finding from 1 review
Caries increment in permanent teeth · Children and adolescents below 18 years at study start (included studies: children from birth to 15 years), with mixed, permanent or…
It is very uncertain whether chlorhexidine varnish (10% and 40%) changes caries increment in permanent dentition (DMFS; higher values… compared with placebo or no treatment (very low certainty).
1 finding from 1 review
Caries experience (mean DMFT) · 12-year-old children across European countries (national/regional epidemiological surveys, 2011-2022)
Mean DMFT tended to increase with unemployment rate (low 1.23, medium 2.08, high 2.38; ANOVA p<.05); descriptive country-level means only, not meta-analyzed or GRADE-rated.
3 findings from 1 review
Oral health-related quality of life · people aged 60 years and older living in the community
Community-dwelling older adults in higher-income countries had better OHRQoL than those in lower-income countries (77.9, 95% CI 70.2 to 85.6 vs 66.9, 95% CI 56.7 to 77.0); the difference by income was statistically significant (ungraded).
2 findings from 1 review
MEAN 77.9 [70.2, 85.6]
Studies not reported
GRADE not reported
MEAN 66.9 [56.7, 77.0]
Studies not reported
GRADE not reported
Oral health-related quality of life · people aged 60 years and older living in the community
Older adults in countries with relative income equality (low Gini index) had markedly higher OHRQoL (91.3, 95% CI 90.0 to 92.6) than those in less equal countries; the difference by Gini index was statistically significant (ungraded).
4 findings from 1 review
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MEAN 81.2 [75.3, 88.3]
Studies not reported
GRADE not reported
Oral health-related quality of life · people aged 60 years and older living in the community
Older adults in higher-HDI countries had better OHRQoL (high 79.9, 95% CI 74.4 to 85.5; very high 78.4, 95% CI 71.1 to 85.8) than those in medium-HDI countries (63.5, 95% CI 54.3 to 72.7); the difference by HDI was statistically significant (ungraded).
3 findings from 1 review
MEAN 79.9 [74.4, 85.5]
Studies not reported
GRADE not reported
MEAN 63.5 [54.3, 72.7]
Studies not reported
GRADE not reported
MEAN 78.4 [71.1, 85.8]
Studies not reported
GRADE not reported
Oral health-related quality of life · people aged 60 years and older living in the community
OHRQoL did not differ significantly across country-level unemployment-rate categories; no pooled estimate was reported in the text (ungraded).
1 finding from 1 review
Oral health-related quality of life · people aged 60 years and older living in the community
OHRQoL did not differ significantly across per-capita health-expenditure categories; no pooled estimate was reported in the text (ungraded).
1 finding from 1 review
Oral health-related quality of life · people aged 60 years and older living in the community
Lower out-of-pocket health expenditure was associated with better OHRQoL (83.9, 95% CI 75.2 to 92.6 vs 67.5, 95% CI 58.5 to 76.5); the difference was statistically significant (ungraded).
2 findings from 1 review
MEAN 67.5 [58.5, 76.5]
Studies not reported
GRADE not reported
MEAN 83.9 [75.2, 92.6]
Studies not reported
GRADE not reported
Fluorosis (percentage prevalence in permanent teeth) · Children exposed to topical fluoride when under 6 years old; fluorosis assessed in permanent teeth at 6 to 18 years
It is very uncertain whether fluoride toothpaste less than 1000 ppm (lower concentration) changes fluorosis (percentage prevalence in permanent teeth) compared with fluoride toothpaste 1000 ppm or more (higher concentration) (very low certainty).
2 findings from 1 review
Determinants of oral diseases · Adult residents of slums and non-slum urban settings of LMICs
Age, education, income, oral-hygiene behaviour, dental-visit pattern and slum/disadvantaged residence are associated with oral disease; gender effects are disease-specific; ungraded.
1 finding from 1 review
Fourteen studies reported determinants: older age, less education, lower income, poor oral hygiene behaviour (brushing frequency, technique), infrequent dental visits and disadvantaged/slum residential setting were…
14 studies
GRADE not reported
Fluorosis (percentage prevalence in permanent teeth) · Children exposed to topical fluoride when under 6 years old; fluorosis assessed in permanent teeth at 6 to 18 years
Fluoride toothpaste 440 ppm (lower concentration) probably leads to lower fluorosis (percentage prevalence in permanent teeth) compared with fluoride toothpaste 1450 ppm (higher concentration) (moderate certainty).
1 finding from 1 review
Fluorosis (percentage prevalence in permanent teeth) · Children exposed to topical fluoride when under 6 years old; fluorosis assessed in permanent teeth at 6 to 18 years
Fluoride toothpaste 550 ppm (lower concentration) probably leads to lower fluorosis (percentage prevalence in permanent teeth) compared with fluoride toothpaste 1000 ppm (higher concentration) (moderate certainty).
1 finding from 1 review
Dental caries · Healthy children and adolescents in the United Arab Emirates
The association between parental education and caries was inconsistent; father's (but not consistently mother's) education was inversely associated with caries in some studies (narrative synthesis; not GRADE-rated).
1 finding from 1 review
Maternal education was not associated with children's caries in the Hashim et al. studies, whereas father's educational level was negatively associated with DMFT in Khadri et al. (secondary-aged children: -0.35, 95% CI…
Studies not reported
GRADE not reported
Dental caries · Healthy children and adolescents in the United Arab Emirates
Evidence on socioeconomic status/income and caries was inconsistent: some studies linked lower income to higher caries while others found no association (narrative synthesis; not GRADE-rated).
1 finding from 1 review
Findings were contradictory. Hashim et al. found children from low-income families had higher odds of severe early childhood caries (OR 1.43, 95% CI 1.11-1.85), and Ahmad et al. reported significantly higher DMFT in…
Studies not reported
GRADE not reported