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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

54 questions in 5 reviews · cluster CL0325

current versions
No studies 0 · 0%Ungraded 54 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Intervention categories, outcome domains and clusters are a proposed key pending human validation. Clear all filters

QuestionEffectEvidenceStatus / GRADE
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Sudan
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 0.49 [0.461, 0.519]1 studyUngraded
Caries experience measurement (mean D(M)FS, enamel lesions included) vs None (descriptive prevalence review; subgroup analyses only)
Caries experience (mean DMFS) · European adolescents aged 12–19 years · Examination type: full-mouth
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
MEAN 6.56 [4.55, 9.47]12 studiesUngraded
Caries assessment at enamel threshold vs None
Caries experience · European adolescents aged 12 years · Exact age
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
Mean DMFS 5.62 [3.78, 8.37]9 studiesUngraded
Caries experience measurement (mean D(M)FS, enamel lesions included) vs None (descriptive prevalence review; subgroup analyses only)
Caries experience (mean DMFS) · European adolescents aged 12–19 years · Age group: 16–19 years
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
MEAN 7.61 [3.78, 15.30]4 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Libya
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 2.11 [1.178, 3.038]2 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Setting: Urban
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 1.325 [0.974, 1.675]10 studiesUngraded
Caries assessment at enamel threshold vs None
Caries experience · European adolescents aged 13 years · Exact age
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
Mean DMFS 1.45 [1.06, 1.98]1 studyUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Kenya
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 0.91 [0.295, 1.525]3 studiesUngraded
Not applicable vs Not applicable
Mean DMFT score · Children aged 12 years (plus or minus one year) in Africa · Overall, publication-period analysis
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
Mean DMFT 1.0900 [0.9143, 1.2657]NRUngraded
Caries assessment at enamel threshold vs None
Caries experience · European adolescents aged 17 years · Exact age
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
Mean DMFS 4.50 [3.63, 5.57]1 studyUngraded
Caries experience measurement (mean D(M)FS, enamel lesions included) vs None (descriptive prevalence review; subgroup analyses only)
Caries experience (mean DMFS) · European adolescents aged 12–19 years · Publication year: ≥ 2010
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
MEAN 6.24 [4.16, 9.37]10 studiesUngraded
Enamel caries quantification (DeS/DeT within total D(M)FS/D(M)FT) vs None (descriptive prevalence review; subgroup analyses only)
Enamel caries proportion of total caries experience · European adolescents aged 12–19 years
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
Proportion 0.50 [0.39, 0.65]7 studies · 7056 participantsUngraded
Caries experience measurement (mean D(M)FS, enamel lesions included) vs None (descriptive prevalence review; subgroup analyses only)
Caries experience (mean DMFS) · European adolescents aged 12–19 years · Examination type: partial-mouth
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
MEAN 3.53 [1.62, 7.70]2 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Algeria
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 1.69 [1.463, 1.917]1 studyUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Data collection period: 2000-2004
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 0.994 [0.731, 1.257]14 studiesUngraded
Caries experience measurement (mean D(M)FS, enamel lesions included) vs None (descriptive prevalence review; subgroup analyses only)
Caries experience (mean DMFS) · European adolescents aged 12–19 years
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
MEAN 5.93 [4.82, 7.28]14 studies · 17658 participantsUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Data collection period: >2015
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 1.802 [1.492, 2.111]6 studiesUngraded
Caries experience measurement (mean D(M)FS, enamel lesions included) vs None (descriptive prevalence review; subgroup analyses only)
Caries experience (mean DMFS) · European adolescents aged 12–19 years · Examination year: ≥ 2010
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
MEAN 5.21 [2.30, 11.81]6 studiesUngraded
Caries experience measurement (mean D(M)FS, enamel lesions included) vs None (descriptive prevalence review; subgroup analyses only)
Caries experience (mean DMFS) · European adolescents aged 12–19 years · Examination year: < 2010
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
MEAN 7.54 [5.46, 10.43]7 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Setting: Urban/rural (unspecified)
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 1.005 [0.797, 1.212]10 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Tanzania
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 0.61 [0.314, 0.902]2 studiesUngraded
Caries experience measurement (mean D(M)FS, enamel lesions included) vs None (descriptive prevalence review; subgroup analyses only)
Caries experience (mean DMFS) · European adolescents aged 12–19 years · Region: Scandinavian
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
MEAN 4.43 [2.52, 7.81]8 studiesUngraded
Enamel caries quantification (DeS/DeT within total D(M)FS/D(M)FT) vs None (descriptive prevalence review; subgroup analyses only)
Enamel caries proportion of total caries experience · European adolescents aged 12–19 years · Age group: 16–19 years
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
Proportion 0.37 [0.24, 0.56]3 studiesUngraded
Not applicable vs Not applicable
Mean DMFT score · Children aged 12 years (plus or minus one year) in Africa · Overall, urban/rural-status analysis
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
Mean DMFT 1.1444 [0.9780, 1.3108]NRUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Setting: Rural
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 1.133 [0.863, 1.404]11 studiesUngraded
Caries experience measurement (mean D(M)FS, enamel lesions included) vs None (descriptive prevalence review; subgroup analyses only)
Caries experience (mean DMFS) · European adolescents aged 12–19 years · Publication year: < 2010
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
MEAN 5.48 [4.27, 8.47]4 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Uganda
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 0.81 [0.646, 0.979]3 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Zimbabwe
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 0.98 [0.829, 1.121]1 studyUngraded
Caries assessment at enamel threshold vs None
Caries experience · European adolescents aged 15 years · Exact age
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
Mean DMFS 6.62 [4.71, 9.30]7 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: The Gambia
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 2.27 [1.931, 2.609]1 studyUngraded
Enamel caries quantification (DeS/DeT within total D(M)FS/D(M)FT) vs None (descriptive prevalence review; subgroup analyses only)
Enamel caries proportion of total caries experience · European adolescents aged 12–19 years · Age group: 12–15 years
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
Proportion 0.56 [0.42, 0.76]8 studiesUngraded
Caries experience measurement (mean D(M)FS, enamel lesions included) vs None (descriptive prevalence review; subgroup analyses only)
Caries experience (mean DMFS) · European adolescents aged 12–19 years · Age group: 12–15 years
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
MEAN 5.58 [4.33, 7.21]17 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Data collection period: 2010-2014
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 0.580 [0.320, 0.841]5 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Nigeria
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 0.60 [0.372, 0.833]4 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 1.09 [0.914, 1.266]28 studiesUngraded
Caries assessment at enamel threshold vs None
Caries experience · European adolescents aged 18 years · Exact age
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
Mean DMFS 14.98 [11.87, 18.90]2 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Eritrea
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 2.50 [2.173, 2.827]1 studyUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: South Africa
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 1.13 [0.795, 1.454]6 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Data collection period: 2005-2009
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 1.085 [-0.092, 2.260]2 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Burkina Faso
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 0.70 [0.639, 0.761]1 studyUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Sao Tome
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 1.63 [1.509, 1.747]1 studyUngraded
Caries assessment at enamel threshold vs None
Caries experience · European adolescents aged 16 years · Exact age
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
Mean DMFS 3.29 [2.49, 4.36]1 studyUngraded
Caries experience measurement (mean D(M)FS, enamel lesions included) vs None (descriptive prevalence review; subgroup analyses only)
Caries experience (mean DMFS) · European adolescents aged 12–19 years · Region: non-Scandinavian
Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis. (2022)
MEAN 8.89 [6.41, 12.33]6 studiesUngraded
Caries severity measurement (mean number of decayed, missing and filled permanent teeth, DMFT; WHO criteria) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)
Caries severity (mean DMFT) · 12-year-old children (permanent dentition) in Africa · Country: Malawi
Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review… (2022)
MEAN 0.67 [0.631, 0.709]1 studyUngraded
Intervention NR
Mean DMFT (decayed, missing, filled permanent teeth) · Individuals with permanent dentition in East Africa · Ethiopia
Prevalence of Dental Caries and Associated Factors in East Africa, 2000-2020: Systematic Review and… (2021)
MEAN 1.182 [1.135, 1.229]NRUngraded
Intervention NR
Mean dmft (decayed, missing, filled primary teeth) · Children with primary dentition in East Africa
Prevalence of Dental Caries and Associated Factors in East Africa, 2000-2020: Systematic Review and… (2021)
MEAN 2.237 [1.293, 3.181]11 studiesUngraded
Intervention NR
Mean DMFT (decayed, missing, filled permanent teeth) · Individuals with permanent dentition in East Africa · Tanzania
Prevalence of Dental Caries and Associated Factors in East Africa, 2000-2020: Systematic Review and… (2021)
MEAN 0.945 [0.421, 1.468]NRUngraded
Caries severity measurement (mean dmft for primary dentition; mean DMFT for permanent dentition) vs None (descriptive prevalence review)
Caries severity/experience (mean dmft and DMFT) · Healthy children and adolescents (primary and permanent dentition) in the United Arab Emirates
Oral Health of Children and Adolescents in the United Arab Emirates: A Systematic Review of the Past Decade. (2021)
Mean dmft (primary dentition) ranged from 0.75 (non-Emirati preschoolers, Abu Dhabi) to 10.9 (children at a pediatric dentistry department in Al Ain); among Emiratis mean dmft ranged 3.07-10.9. Mean DMFT (permanent…NRUngraded
Intervention NR
Mean DMFT (decayed, missing, filled permanent teeth) · Individuals with permanent dentition in East Africa · Eritrea
Prevalence of Dental Caries and Associated Factors in East Africa, 2000-2020: Systematic Review and… (2021)
MEAN 2.273 [1.884, 2.661]NRUngraded
Down syndrome (oral health status) vs Healthy controls
Oral health status (caries, DMFT, calculus, erosion, malocclusion, treatment indices) · Children with Down syndrome in the United Arab Emirates (Dubai)
Oral Health of Children and Adolescents in the United Arab Emirates: A Systematic Review of the Past Decade. (2021)
Ghaith et al. (Dubai) reported dental decay in 57.6% of children with Down syndrome (same as controls) but a higher mean DMFT (2.73 vs 1.65) and calculus index (0.25 vs 0.07), higher erosion prevalence/severity, and…1 studyUngraded