Crown failure · Adults (18 years or older) needing a single crown in the molar or premolar region
It is very uncertain whether metal-free single crowns (full-contour zirconia) changes crown failure compared with cast gold (conventional metal) single crowns (very low certainty).
2 findings from 1 review
Crown complications · Adults (18 years or older) needing a single crown in the molar or premolar region
It is very uncertain whether metal-free single crowns (full-contour zirconia) changes crown complications compared with cast gold (conventional metal) single crowns (very low certainty).
2 findings from 1 review
Aesthetics · Adults (18 years or older) needing a single crown in the molar or premolar region
The review found no eligible studies for this question.
1 finding from 1 review
Periodontal/peri-implant status and occlusal wear (secondary outcomes) · Adults (18 years or older) needing a single crown in the molar or premolar region
The review found no eligible studies for this question.
1 finding from 1 review
Restoration survival · Permanent posterior teeth with single-surface cavities
Single-surface high-viscosity glass-ionomer ART restorations in permanent teeth had high 2-year survival (93%, 95% CI 89-95%); evidence ungraded.
6 findings from 1 review
Show 3 more findings
Restoration survival · Primary posterior teeth with single-surface cavities
Single-surface high-viscosity glass-ionomer ART restorations in primary teeth had high 2-year survival (93%, 95% CI 91-94%); evidence ungraded.
3 findings from 1 review
Marginal bone level (first bone to implant contact, FBIC) · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown
Metal-free implant-supported single crowns (zirconia veneered with… showed no clear difference in marginal bone level (first bone to implant contact, FBIC) compared with metal-ceramic implant-supported single crowns; GRADE not reported.
4 findings from 1 review
MD -0.01 [-0.93, 0.91]
1 study · 18 participants
GRADE not reported
MD -0.03 [-0.42, 0.36]
1 study · 18 participants
GRADE not reported
MD -0.18 [-0.89, 0.53]
1 study · 18 participants
GRADE not reported
Show 1 more finding
Patient satisfaction (measured by patient satisfaction or aesthetic scales) · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown
It is very uncertain whether metal-free implant-supported single crowns (zirconia veneered with… changes aesthetic evaluation (patient satisfaction VAS) compared with metal-ceramic implant-supported single crowns (very low certainty).
2 findings from 1 review
Aesthetics · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown
It is very uncertain whether metal-free implant-supported single crowns (zirconia veneered with… changes aesthetic evaluation (pink and white aesthetic score, PES and WES… compared with metal-ceramic implant-supported single crowns (very low certainty).
1 finding from 1 review
Implant crown failure · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown
1 finding from 1 review
Implant crown complications · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown
It is very uncertain whether metal-free implant-supported single crowns (zirconia veneered with… changes implant crown complications compared with metal-ceramic implant-supported single crowns (very low certainty).
1 finding from 1 review
Early childhood caries (ECC) · Children aged 0-5 years in North Africa
Pooled ECC prevalence in Tunisia was 38% (95% CI 24-51), significantly lower than Egypt and Sudan.
10 findings from 1 review
Prevalence 38 [24, 51]
4 studies
GRADE not reported
Prevalence 48 [39, 58]
9 studies
GRADE not reported
Prevalence 63 [52, 74]
3 studies
GRADE not reported
Show 7 more findings
Mean dmft (caries severity) · Children aged 0-5 years in North Africa
The pooled mean dmft was 2.95 (95% CI 1.86-4.67), with very high heterogeneity (I2=99.7%).
1 finding from 1 review
MEAN 2.95 [1.86, 4.67]
13 studies
GRADE not reported
Dental caries prevalence · Primary school children in Ethiopia
Among studies using systematic random sampling, the pooled prevalence of dental caries was 35% (ungraded; CI not reported).
4 findings from 1 review
Prevalence of dental caries and associated factors among primary school children in Ethiopia: systematic review and… 2024 All outcomesSchools; Ethiopia (Addis Ababa, Bahir Dar, Finote Selam, Harer, Debre Birhan, North Showa) · Sampling technique: systematic random sampling
Prevalence 30 [15, 44]
2 studies · 554 participants
GRADE not reported
Prevalence of dental caries and associated factors among primary school children in Ethiopia: systematic review and… 2024 All outcomesSchools; Ethiopia (Addis Ababa, Bahir Dar, Finote Selam, Harer, Debre Birhan, North Showa) · Sampling technique: multi-stage random sampling
Prevalence 21 [19, 23]
1 study · 1736 participants
GRADE not reported
Prevalence of dental caries and associated factors among primary school children in Ethiopia: systematic review and… 2024 All outcomesSchools; Ethiopia (Addis Ababa, Bahir Dar, Finote Selam, Harer, Debre Birhan, North Showa) · Sampling technique: simple random sampling
Prevalence 42 [35, 49]
4 studies · 1421 participants
GRADE not reported
Show 1 more finding
Dental caries prevalence · Children (<18 years) with intellectual and developmental disabilities (IDD) in India
Dental caries affects about 64% of children with IDD in India (pooled prevalence 0.64, 95% CI 0.45-0.79; high heterogeneity; ungraded).
1 finding from 1 review
Periodontal disease prevalence · Children (<18 years) with intellectual and developmental disabilities (IDD) in India
In the single study reporting it, periodontal disease prevalence was 54.2% (single study; ungraded).
1 finding from 1 review
Early childhood caries experience (mean dmft) · Children younger than 71 months (under 6 years)
Mean dmft was lowest (1.62 teeth) in low-inequality countries by Gini index.
16 findings from 1 review
Show 13 more findings
MEAN 3.34 [1.79, 4.88]
13 studies
GRADE not reported
MEAN 4.64 [3.38, 5.91]
19 studies
GRADE not reported
MEAN 3.87 [2.84, 4.91]
30 studies
GRADE not reported
MEAN 3.89 [1.62, 6.16]
7 studies
GRADE not reported
MEAN 4.04 [2.39, 5.68]
9 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomesCountries with 71-75 years life expectancy · Life expectancy: 71-75 years
MEAN 5.18
Studies not reported
GRADE not reported
MEAN 4.28 [2.58, 5.97]
10 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomesCountries with no income inequality (Gini) · Gini index: no inequalities
MEAN 3.95
Studies not reported
GRADE not reported
MEAN 3.08 [2.42, 3.74]
3 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes49 countries worldwide; urban and rural communities · Overall (all regions)
MEAN 3.68 [2.99, 4.37]
60 studies
GRADE not reported
MEAN 1.13 [0.72, 1.55]
9 studies
GRADE not reported
MEAN 2.26 [0.69, 3.82]
11 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomesCountries with highest life expectancy (>80 years) · Life expectancy: >80 years
MEAN 1.34
Studies not reported
GRADE not reported
Early childhood caries (ECC) · Children younger than 71 months (under 6 years)
Pooled ECC prevalence in Europe was 36% (95% CI 25-47).
16 findings from 1 review
Show 13 more findings
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomesCountries with no income inequality (Gini) · Gini index: no inequality
Prevalence 62
Studies not reported
GRADE not reported
Prevalence 42 [32, 53]
3 studies
GRADE not reported
Prevalence 52 [45, 60]
33 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomes49 countries worldwide; urban and rural communities · Overall (all regions)
Prevalence 49 [44, 55]
67 studies
GRADE not reported
Prevalence 55 [42, 68]
9 studies
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomesCountries with low income inequality (Gini) · Gini index: low inequality
Prevalence 39
Studies not reported
GRADE not reported
A systematic review and meta-analysis on early-childhood-caries global data. 2024 All outcomesCountries with highest life expectancy · Life expectancy: highest (>80 years)
Prevalence 28
Studies not reported
GRADE not reported
Prevalence 53 [41, 65]
14 studies
GRADE not reported
Prevalence 72 [58, 85]
7 studies
GRADE not reported
Prevalence 57 [36, 77]
5 studies
GRADE not reported
Prevalence 34 [20, 48]
6 studies
GRADE not reported
Prevalence 30 [22, 38]
11 studies
GRADE not reported
Prevalence 57 [47, 67]
19 studies
GRADE not reported
Regular toothbrushing usage (prevalence) · Children (<18 years) with intellectual and developmental disabilities (IDD) in India
About 91% of children with IDD in India use a toothbrush regularly (pooled prevalence 0.91, 95% CI 0.80-0.96; high heterogeneity; ungraded).
1 finding from 1 review
Proportion of ancient skulls with at least one non-carious cervical lesion (NCCL) · Ancient/prehistoric human skulls (excavated/archaeological skeletal remains)
About 1.4% of ancient skulls (pooled) had at least one NCCL; crude 17/805 (2.11%) across 6 studies (ungraded, substantial heterogeneity I2=69%).
1 finding from 1 review