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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.
5,762 questions in 263 reviews · Dental caries
current versionsNo studies 321 · 5.6%Ungraded 4,450 · 77.2%Very low 455 · 7.9%Low 297 · 5.2%Moderate 200 · 3.5%High 39 · 0.7%
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.
| Question | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Indirect bonding with flowable adhesive (Opal Bond MV) vs Direct bonding with Transbond XT White spot lesion formation measured by QLF · Patients undergoing fixed orthodontic treatment · Before and after treatment Can Orthodontic Adhesive Systems Inhibit the Formation and Development of White Spot Lesions During Fixed… (2024) | The DB group exhibited significantly higher loss of fluorescence and degree of demineralization compared to the IB group between T0 and T1, with notable differences in specific quadrants (p <0.05 for ΔF and ΔF max). | 1 study · 51 participants | Ungraded |
TT+GG (homozygous) genotypes vs TG (heterozygous) genotype Dental caries · Children (<18 years) with vs without dental caries · Over-dominant model (TT+GG vs TG) Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 0.89 [0.66, 1.20] | 3 studies · 796 participants | Ungraded |
Cranberry extract / juice and proanthocyanidin (flavonoid) fractions vs Untreated or vehicle control (some studies vs positive antimicrobial controls, e.g. chlorhexidine/fluoride) Antioxidant capacity · Streptococcus mutans (in vitro cultures and biofilms) Effect of flavonoids from grape seed and cranberry extracts on the microbiological activity of Streptococcus… (2024) | Cranberry non-dialyzable fractions showed antioxidant activity; the acetone-eluted NDMac fraction was ~twice as rich in polyphenols and had ~twice the antioxidant activity of the ethanol-eluted fraction (Neto 2017). | 1 study | Ungraded |
Silver diamine fluoride (SDF; 38% in most trials, 30% in three) vs Other methods (pooled: nano-silver fluoride, sodium fluoride varnish) Caries arrestment at the surface level · Children and adults with active dental caries (aged 1-50; mostly preschool/school children with primary dentition) · 12 to 18 months, Overall (all comparators pooled) The role of silver diamine fluoride as dental caries preventive and arresting agent: a systematic review and… (2024) | OR 1.03 [0.47, 2.27] | 3 studies · 5394 participants | Moderate |
Primary teeth / primary dentition (younger children) vs Permanent teeth / permanent dentition (older children) Dental caries risk · Institutionalized orphan children · Overall (pooled) Caries in orphan children: prevalence and determinants-a systematic review and meta-analysis. (2024) | RR 1.31 [0.91, 1.89] | 5 studies · 1892 participants | Very low |
Prophylaxis (teeth cleaning) and CHX or iodine-NaF solution application in the dentition of women (mothers) vs Placebo dmfs index score · For interventions, pregnant women and mothers of infants in the first year of life; for outcomes, children up to 6… Interventions with pregnant women, new mothers and other primary caregivers for preventing early childhood… (2024) · Cochrane | dmfs was listed in the SoF table but not assessed (no trial reported it). | 0 studies | No studies |
Pulpotomy (full or partial) vs None (single-arm success proportion) Overall success (composite of clinical and radiographic success) · Permanent teeth with carious pulp exposure · >=12 months, Unspecified/mixed diagnosis Efficacy of pulpotomy for permanent teeth with carious pulp exposure: A systematic review and meta-analysis… (2024) | Proportion 0.909 [0.833, 0.965] | NR | Ungraded |
Silver diamine fluoride (SDF) vs Fluoride varnish Caries arrest · Children and adults (with or without carious lesions) · Permanent dentition (root) Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | No studies reported data in this dentition type | 0 studies | No studies |
Overweight/obesity (combined) vs Normal weight (eutrophic) Dental caries prevalence (any dmft), dichotomous · Brazilian children under 5 years in primary dentition (BMI classified by WHO 2006 Z-score) Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024) | OR 0.86 [0.60, 1.22] | 3 studies | Very low |
Cesarean section delivery vs Vaginal delivery Early childhood caries (ECC) · Children aged <6 years · Time period: After 2018 RETRACTED: The association between mode of childbirth delivery and early childhood caries: A comprehensive… (2024) | OR 1.01 [0.75, 1.35] | 13 studies | Ungraded |
Periodontitis vs No periodontitis (periodontal health or gingivitis) Dental caries (prevalence) · Adults · Female Association between periodontitis and dental caries: a systematic review and meta-analysis. (2024) | OR 1.36 [0.74, 2.49] | 2 studies | Ungraded |
Genome-wide common variants (aggregate additive; LD score regression) vs Not applicable (variance-component estimate) Dental caries - SNP-based heritability · Japanese adults (present-study cohort) · Lifelong (germline genotype), LDSC heritability (present study) Genome-wide association meta-analysis identifies two novel loci associated with dental caries. (2024) | h2 (observed-scale SNP heritability) 0.0258 | 1 study · 45525 participants | Ungraded |
Pulpotomy (full or partial) vs None (single-arm success proportion) Overall success (composite of clinical and radiographic success) · Permanent teeth with carious pulp exposure · >=12 months, Partial pulpotomy Efficacy of pulpotomy for permanent teeth with carious pulp exposure: A systematic review and meta-analysis… (2024) | Proportion 0.882 | NR | Ungraded |
Intervention NR Overall success (composite of clinical and radiographic success) · Full pulpotomy, unspecified/mixed diagnosis Efficacy of pulpotomy for permanent teeth with carious pulp exposure: A systematic review and meta-analysis… (2024) | Proportion 0.903 [0.801, 0.973] | 5 studies | Ungraded |
Prenatal vitamin D deficiency (PVDD) vs Normal or sufficient prenatal vitamin D level Dental caries · Children aged 2 to 8 years · Maternal pregnancy to child age 2 to 8 years, Meta-regression adjusted for gestational age, child age, and maternal vitamin D level Association between prenatal vitamin D deficiency with dental caries in infants and children: a systematic… (2024) | OR 1.28 [1.23, 1.33] | NR | Ungraded |
Silver diamine fluoride (SDF) vs Placebo, control, and/or other interventions Caries arrestment at the tooth level · Children and adults without systemic diseases affecting dental health · 6 months to 12 months The role of silver diamine fluoride as dental caries preventive and arresting agent: a systematic review and… (2024) | OR 1.74 [0.88, 3.46] | 5 studies · 743 participants | Moderate |
CC genotype vs CT+TT genotypes Dental caries · Children (<18 years) with vs without dental caries · Recessive model (CC vs CT+TT) Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 1.23 [0.97, 1.55] | 3 studies · 1329 participants | Ungraded |
Obesity vs Normal weight (eutrophic) Dental caries prevalence (any dmft), dichotomous · Brazilian children in primary dentition (BMI classified by CDC 2000 growth charts) Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024) | OR 0.44 [0.08, 2.61] | 2 studies · 709 participants | Very low |
Silver diamine fluoride (SDF) vs Fluoride varnish Caries arrest · Children and adults (with or without carious lesions) · Permanent dentition (coronal) Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | No studies reported data in this dentition type | 0 studies | No studies |
Silver diamine fluoride (SDF) vs Silver nitrate plus fluoride varnish Caries arrest · Children and adults (with or without carious lesions) · 18 months, Primary dentition (coronal) Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | MD -0.10 [-0.51, 0.31] | 1 study · 1070 participants | Low |
Extraction at patient age <8 years vs Extraction at patient age >10 years Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar) · Until eruption of the permanent second molar (median follow-up 4.0 years), Mandible Spontaneous space closure after extraction of permanent first molars in children and adolescents: a… (2024) | OR 5.01 [1.45, 17.30] | 2 studies · 15 participants | Low |
Cranberry extract / juice and proanthocyanidin (flavonoid) fractions vs Untreated or vehicle control (some studies vs positive antimicrobial controls, e.g. chlorhexidine/fluoride) GtfB/C and F-ATPase activity · Streptococcus mutans (in vitro cultures and biofilms) Effect of flavonoids from grape seed and cranberry extracts on the microbiological activity of Streptococcus… (2024) | Cranberry PAC reduced extracellular polysaccharides 35-40% and inhibited GtfB 40-70% (Koo); decreased EPS formation (Philip 2019); inhibited F-ATPase up to 85% and GtfB up to 70% (Duarte); F-ATPase 18-33% and GtfB… | 5 studies | Ungraded |
Not applicable (single-group prevalence) vs Not applicable (single-group prevalence) Early childhood caries experience (mean dmft) · Children younger than 71 months (under 6 years) · Region: Central/South America A systematic review and meta-analysis on early-childhood-caries global data. (2024) | MEAN 3.08 [2.42, 3.74] | 3 studies | Ungraded |
Silver diamine fluoride (SDF) vs Placebo or no treatment Adverse effects · Children and adults (with or without carious lesions) · 12 to 30 months, Adults Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | 1 study reported no adverse effects. 1 study reported a white discolouration of the gingiva adjacent to surfaces treated with SDF (116 surfaces) as well as redness (4 surfaces), and mild ulceration (2 surfaces). In… | 2 studies · 316 participants | Very low |
Not applicable (single-group prevalence) vs Not applicable (single-group prevalence) Early childhood caries experience (mean dmft) · Children younger than 71 months (under 6 years) · Overall (all regions) A systematic review and meta-analysis on early-childhood-caries global data. (2024) | MEAN 3.68 [2.99, 4.37] | 60 studies | Ungraded |
CC+AA (homozygous) genotypes vs CA (heterozygous) genotype Dental caries · Children (<18 years) with vs without dental caries · Over-dominant model (CC+AA vs CA) Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 0.91 [0.73, 1.14] | 3 studies · 1327 participants | Ungraded |
Mineral trioxide aggregate (MTA) vs TotalFill BC Overall success (composite of clinical and radiographic success) · Permanent teeth with carious pulp exposure · >=12 months Efficacy of pulpotomy for permanent teeth with carious pulp exposure: A systematic review and meta-analysis… (2024) | OR 1.44 [0.65, 3.19] | 2 studies · 248 participants | Ungraded |
Children with severe early childhood caries (S-ECC) vs Caries-free children Serum 25-hydroxyvitamin D level · Preschool children ≤6 years, North America · North America The Association Between Vitamin D and Early Childhood Caries: A Systematic Review and Meta-Analysis. (2024) | MD -13.28 [-17.70, -8.87] | NR | Ungraded |
Extraction at patient age 8-10 years vs Extraction at patient age >10 years Spontaneous space closure · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar) · Until eruption of the permanent second molar (median follow-up 4.0 years), Mandible Spontaneous space closure after extraction of permanent first molars in children and adolescents: a… (2024) | OR 3.32 [1.73, 6.36] | 3 studies · 109 participants | Low |
Slum setting vs Non-slum urban setting Oral disease prevalence · Adult residents of slum and non-slum urban settings in LMICs Systematic review of oral health in slums and non-slum urban settings of Low and Middle-Income Countries… (2024) | no estimate extracted | 18 studies | Ungraded |
Cranberry extract or cranberry flavonoid fractions vs No extract or vehicle control; other antimicrobial agents Bacterial growth inhibition · Streptococcus mutans cultures and biofilms Effect of flavonoids from grape seed and cranberry extracts on the microbiological activity of Streptococcus… (2024) | no estimate extracted | 7 studies | Ungraded |
Higher waist circumference vs Lower waist circumference Dental caries in children · Children (approx. 4-18 years) Childhood obesity in relation to risk of dental caries: a cumulative and dose-response systematic review and… (2024) | OR 1.08 [0.90, 1.30] | 2 studies | Ungraded |
Presence of oral Candida albicans vs Absence of oral Candida albicans Early childhood caries (ECC) · Children aged ≤6 years (early childhood) · Exposure and outcome assessed concurrently (observational); children aged ≤6 years, Time period: 2018 and later RETRACTED: Investigating the association between Candida albicans and early childhood dental caries: A… (2024) | OR 4.17 [2.62, 6.64] | 12 studies | Ungraded |
GG genotype vs GA+AA genotypes Dental caries · Children (<18 years) with vs without dental caries · Recessive model (GG vs GA+AA) Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 0.58 [0.26, 1.30] | 4 studies · 1741 participants | Ungraded |
Adhesive precoated (APC) flash-free brackets (minimal excess adhesive) vs Conventional brackets (conventional adhesive-coated / ceramic brackets) Enamel demineralization / white spot lesions (DIAGNOdent, QLF) · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35) · 1 to 6 months (to debonding) Can Orthodontic Adhesive Systems Inhibit the Formation and Development of White Spot Lesions During Fixed… (2024) | Two studies (Tan 2020 split-mouth, n=30; Yetkiner 2019 RCT, n=50): no statistically significant difference in demineralization between flash-free and conventional/APC brackets (Tan p>0.05; Yetkiner delta-F not… | 2 studies · 80 participants | Ungraded |
Silver diamine fluoride (SDF) plus fluoride varnish vs Sealants plus fluoride varnish (with or without restorations) Dental pain or sensitivity · Children and adults (with or without carious lesions) Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | No studies reported data for this outcome in this comparison | 0 studies | No studies |
Silver diamine fluoride (SDF; 38% in most trials, 30% in three) vs Other methods (pooled: ART/glass ionomer cement, nano-silver fluoride, sodium fluoride varnish, placebo) Adverse effects (tooth staining; soft-tissue and systemic events) · Children and adults with active dental caries (aged 1-50; mostly preschool/school children with primary dentition) · up to 30 months The role of silver diamine fluoride as dental caries preventive and arresting agent: a systematic review and… (2024) | Black staining of arrested lesions reported in most studies; 4 studies reported mild transient events (gingival blenching/pain; diarrhea/stomachache; burning, bad taste, pain, mouth injury, dissatisfaction with… | NR | Ungraded |
TT+CC (homozygous) genotypes vs TC (heterozygous) genotype Dental caries · Children (<18 years) with vs without dental caries · Over-dominant model (TT+CC vs TC), PCR-RFLP genotyping Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 1.15 [0.83, 1.60] | NR | Ungraded |
TT genotype vs TC+CC genotypes Dental caries · Children (<18 years) with vs without dental caries · Recessive model (TT vs TC+CC), Caucasian ethnicity Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 1.05 [0.56, 1.98] | NR | Ungraded |
Teledentistry (index test): dental caries diagnosis from photographs taken with DSLR or smartphone cameras; store-and-forward vs Visual/clinical dental examination (reference standard) Negative predictive value · Children and adults with primary or permanent dentition undergoing dental caries assessment · Cross-sectional diagnostic accuracy (index test vs reference standard, in-vivo), Overall (studies reporting NPV; narrative synthesis) Teledentistry accuracy for caries diagnosis: a systematic review of in-vivo studies using extra-oral… (2024) | Negative predictive value reported in 10 of 19 studies; per-study values ranged from about 31% to 99.5% (Table 2). No pooled estimate. | 10 studies | Ungraded |
Intervention NR Decayed surfaces (DS) · Periodontal disease severity (CDC-AAP); single study (Robert 2019); adjusted Association between periodontitis and dental caries: a systematic review and meta-analysis. (2024) | OR 1.18 [1.05, 1.32] | 1 study | Ungraded |
Not applicable (single-group prevalence) vs Not applicable (single-group prevalence) Early childhood caries experience (mean dmft) · Children younger than 71 months (under 6 years) · GNI $20000-$39999 A systematic review and meta-analysis on early-childhood-caries global data. (2024) | MEAN 1.13 [0.72, 1.55] | 9 studies | Ungraded |
Silver diamine fluoride (SDF) vs Fluoride varnish Adverse effects · Children and adults (with or without carious lesions) · 24 hours to 30 months, Children Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | In 1 study, black or brown staining on treated lesions was more common after SDF (OR 3.19, 95% CI 1.95 to 5.23), with no other adverse effects. 1 study reported complaints of a transient bitter taste with SDF use (with… | 3 studies · 980 participants | Very low |
Not applicable (single-group prevalence) vs Not applicable (single-group prevalence) Early childhood caries (ECC) prevalence (%, dmft>0) · Children younger than 71 months (under 6 years) · GNI $10000-$19999 A systematic review and meta-analysis on early-childhood-caries global data. (2024) | Prevalence 55 [42, 68] | 9 studies | Ungraded |
Not applicable (single-group prevalence) vs Not applicable (single-group prevalence) Early childhood caries (ECC) prevalence (%, dmft>0) · Children younger than 71 months (under 6 years) · Gini index: low inequality A systematic review and meta-analysis on early-childhood-caries global data. (2024) | Prevalence 39 | NR | Ungraded |
Obesity vs Normal weight (eutrophic) Untreated dental caries (d component), continuous · Brazilian children/adolescents (BMI classified by WHO 2007 Z-score) Overweight/obesity and dental caries in Brazilian children and adolescents: a systematic review and… (2024) | MD 0.28 [-0.03, 0.59] | 2 studies · 456 participants | Low |
Serum 25(OH)D < 50 nmol/l vs Serum 25(OH)D 50–75 nmol/l Early childhood caries (ECC) · Preschool children ≤6 years The Association Between Vitamin D and Early Childhood Caries: A Systematic Review and Meta-Analysis. (2024) | OR 1.47 [1.30, 1.66] | 6 studies · 5265 participants | Ungraded |
Pulpotomy (full or partial) vs None (single-arm success proportion) Overall success (composite of clinical and radiographic success) · Permanent teeth with carious pulp exposure · >=12 months Efficacy of pulpotomy for permanent teeth with carious pulp exposure: A systematic review and meta-analysis… (2024) | Proportion 0.867 [0.820, 0.907] | 25 studies · 2012 participants | Very low |
Slum / urban-disadvantaged setting vs Non-slum urban / general-urban / national population Self-perceived (self-rated) oral health status · Adult residents of slums and non-slum urban settings of LMICs · Cross-sectional, By age, sex, socioeconomic class, employment Systematic review of oral health in slums and non-slum urban settings of Low and Middle-Income Countries… (2024) | Six studies (incl. 1 qualitative) reported perception; most participants rated their oral health as satisfactory/good (e.g., Olutola 76% good; Olusile 21% very good + 37% good; Osuh higher in slum than non-slum),… | 6 studies | Ungraded |
Highest BMI category (overweight/obese) vs Lowest BMI category (normal weight/underweight) Dental caries / early childhood caries (ECC) · Children (approx. 4-18 years) · Study design: cohort Childhood obesity in relation to risk of dental caries: a cumulative and dose-response systematic review and… (2024) | OR 1.27 [1.07, 1.56] | 3 studies | Ungraded |