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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)

21 questions in 7 reviews · cluster CL0362

current versions
No studies 0 · 0%Ungraded 21 · 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
Intervention NR
Early childhood caries (ECC), prevalence · Study design: hospital-based
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. (2025)
Prevalence 64 [40, 89]2 studiesUngraded
Intervention NR
Early childhood caries (ECC), prevalence · Study design: school-based
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. (2025)
Prevalence 55 [44, 67]9 studiesUngraded
Intervention NR
Early childhood caries (ECC), prevalence · Study design: population-based
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. (2025)
Prevalence 57 [44, 70]7 studiesUngraded
Intervention NR
Early childhood caries (ECC), prevalence · Study site: urban and rural (both)
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. (2025)
Prevalence 51 [35, 67]7 studiesUngraded
Intervention NR
Early childhood caries (ECC) - incidence/risk · Sensitivity analysis (Feldens 2010 excluded): breastfeeding >12 months
Risk of Early Childhood Dental Caries Associated With Prolonged Breastfeeding: A Systematic Review and… (2025)
RR 1.37 [0.89, 2.12]6 studiesUngraded
Intervention NR
Early childhood caries (ECC), prevalence · Study site: urban
Prevalence and risk factors for early childhood caries in North Africa: a systematic review and meta-analysis. (2025)
Prevalence 59 [52, 67]9 studiesUngraded
Intervention NR
Dental caries (early childhood caries) · Narrative single study (Matee 1994): nocturnal breast-feeding
Association of Breastfeeding and Early Childhood Caries: A Systematic Review and Meta-Analysis. (2024)
OR 17.8 [6.3, 50.3]1 studyUngraded
Intervention NR
Dental caries (early childhood caries) · Narrative single study (Lima 2016): no nocturnal BF vs nocturnal BF at 16 months
Association of Breastfeeding and Early Childhood Caries: A Systematic Review and Meta-Analysis. (2024)
OR 0.51 [0.39, 0.65]1 studyUngraded
Intervention NR
Dental caries (early childhood caries) · Narrative single study (Ganesh 2022): BF during sleep
Association of Breastfeeding and Early Childhood Caries: A Systematic Review and Meta-Analysis. (2024)
AOR 6.51 studyUngraded
Intervention NR
Dental caries in children · Children's age subgroup: 2 to 4 years
Association between prenatal vitamin D deficiency with dental caries in infants and children: a systematic… (2024)
OR 1.20 [1.04, 1.36]4 studiesUngraded
Intervention NR
Dental caries (early childhood caries) · Narrative single study (Ganesh 2022): BF in early morning sleep hours
Association of Breastfeeding and Early Childhood Caries: A Systematic Review and Meta-Analysis. (2024)
AOR 3.71 studyUngraded
Intervention NR
Dental caries (early childhood caries) · Narrative single study (Ganesh 2022): BF at beginning of sleep
Association of Breastfeeding and Early Childhood Caries: A Systematic Review and Meta-Analysis. (2024)
AOR 6.71 studyUngraded
Intervention NR
Dental caries in primary dentition (presence) · Postnatal exposure; primary dentition; trim-and-fill adjusted (publication-bias sensitivity)
Association between passive tobacco exposure and caries in children and adolescents. A systematic review and… (2018)
OR 1.72 [1.45, 2.05]13 studiesUngraded
Intervention NR
Dental caries in permanent dentition (presence) · Postnatal exposure; permanent dentition; trim-and-fill adjusted (publication-bias sensitivity)
Association between passive tobacco exposure and caries in children and adolescents. A systematic review and… (2018)
OR 1.30 [1.25, 1.33]9 studiesUngraded
Intervention NR
Dental caries in primary dentition (presence) · Prenatal exposure; primary dentition; trim-and-fill adjusted (publication-bias sensitivity)
Association between passive tobacco exposure and caries in children and adolescents. A systematic review and… (2018)
OR 1.46 [1.40, 1.52]4 studiesUngraded
Intervention NR
Dental caries (presence; primary or permanent dentition) · Trim-and-fill adjusted (publication-bias sensitivity)
Association between passive tobacco exposure and caries in children and adolescents. A systematic review and… (2018)
OR 1.50 [1.36, 1.64]21 studiesUngraded
Intervention NR
Caries occurrence on sealed teeth · 12 months, original datasets only (permanent teeth)
The modified Ottawa method to establish the update need of a systematic review: glass-ionomer versus resin… (2013)
RR 2.61 [0.61, 11.14]2 studiesUngraded
Intervention NR
Caries occurrence on sealed teeth · 6 months, original datasets only (permanent teeth)
The modified Ottawa method to establish the update need of a systematic review: glass-ionomer versus resin… (2013)
RR 1.81 [0.39, 8.37]3 studiesUngraded
Intervention NR
Caries occurrence on sealed teeth · 24 months, original datasets only (permanent teeth)
The modified Ottawa method to establish the update need of a systematic review: glass-ionomer versus resin… (2013)
RR 2.10 [1.23, 3.58]4 studiesUngraded
Intervention NR
Risk of caries occurrence · Main analysis; resin-based (Mat 1)
Validity of sealant retention as surrogate for caries prevention--a systematic review. (2013)
Mean risk (proportion of sealed teeth) 0.12 (SD 0.14)54 studiesUngraded
Intervention NR
Risk of caries occurrence · Main analysis; GIC-based (Mat 2)
Validity of sealant retention as surrogate for caries prevention--a systematic review. (2013)
Mean risk (proportion of sealed teeth) 0.12 (SD 0.08)22 studiesUngraded