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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 |
|---|---|---|---|
Breastfeeding promotion and support (e.g. individually tailored home-based peer counselling on the importance of breastfeeding, with advice and support for healthy breastfeeding) vs Standard care Caries presence in primary teeth · For interventions, pregnant and lactating women; for outcomes, children up to 6 years of age · Children assessed at 5-6 yrs Interventions with pregnant women, new mothers and other primary caregivers for preventing early childhood… (2024) · Cochrane | RR 0.96 [0.89, 1.03] | 2 studies · 1148 participants | Low |
High-frequency sugar consumption (three or more times daily) vs Low sugar intake (fewer than three times daily) Dental caries experience in primary dentition (early childhood caries) · Nigerian children with primary dentition (approximately 6 months to 5 years) · Primary dentition A systematic review and meta-analysis of the association between sugar intake and dental caries in Nigeria. (2024) | OR 1.13 [0.23, 5.44] | 2 studies | Ungraded |
Clearfil Protect Bond antibacterial fluoride-releasing primer vs Transbond XT conventional primer White spot lesion incidence · Patients undergoing fixed orthodontic treatment · Before and after orthodontic treatment Can Orthodontic Adhesive Systems Inhibit the Formation and Development of White Spot Lesions During Fixed… (2024) | The incidence of WSLs in the Clearfil (CF) group was 8.03%, while in the Transbond (TB) group, it was 9.24% with no significant difference (p = 0.82). | 1 study · 35 participants | Ungraded |
Silver diamine fluoride (SDF) vs Glass ionomer cement (GIC) plus fluoride varnish Aesthetics · 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 |
Periodontitis vs No periodontitis (periodontal health or gingivitis) Mean DMFT (decayed, missing, filled teeth) · Adults · Overall Association between periodontitis and dental caries: a systematic review and meta-analysis. (2024) | WMD 0.87 [-0.03, 1.76] | 4 studies | 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, Normal pulp/reversible pulpitis Efficacy of pulpotomy for permanent teeth with carious pulp exposure: A systematic review and meta-analysis… (2024) | Proportion 0.920 [0.879, 0.954] | NR | Ungraded |
Highest BMI category (overweight/obese) vs Lowest BMI category (normal weight/underweight) Dental caries / early childhood caries (ECC) · Children (approx. 4-18 years) · Country population: large Childhood obesity in relation to risk of dental caries: a cumulative and dose-response systematic review and… (2024) | OR 1.56 [1.09, 2.21] | 9 studies | Ungraded |
Silver diamine fluoride (SDF) vs Sealants or resin infiltration Secondary prevention of caries · Children and adults (with or without carious lesions) · 24 months, Primary dentition (coronal) Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | OR 2.76 [0.67, 11.43] | 1 study · 75 participants | 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, Study quality (NOS): good RETRACTED: Investigating the association between Candida albicans and early childhood dental caries: A… (2024) | OR 5.32 [2.89, 9.80] | 7 studies | Ungraded |
Maternal smoking during pregnancy vs No maternal smoking during pregnancy Dental caries in children · Children of mothers assessed for smoking status during pregnancy (early childhood dental caries) · Exposure during pregnancy; caries assessed in early childhood, Dental examination: Visual/tactile examination Maternal smoking during pregnancy and early childhood dental caries in children: a systematic review and… (2024) | OR 1.48 [1.26, 1.74] | 4 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) · GNI <$5000 A systematic review and meta-analysis on early-childhood-caries global data. (2024) | MEAN 4.64 [3.38, 5.91] | 19 studies | Ungraded |
Silver diamine fluoride (SDF) plus fluoride varnish vs Sealants plus fluoride varnish (with or without restorations) Caries arrest · Children and adults (with or without carious lesions) · 24 months, Mixed dentition (coronal) Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | MD 0.11 [-0.01, 0.22] | 1 study · 413 participants | Low |
Opal Seal fluoride-releasing primer vs Conventional Transbond XT primer DIAGNOdent white spot lesion measurement · Patients undergoing fixed orthodontic treatment · During orthodontic treatment Can Orthodontic Adhesive Systems Inhibit the Formation and Development of White Spot Lesions During Fixed… (2024) | Opal Seal group showed fewer WSLs compared to the Transbond group, with initial demineralization rates of 1.3% and 3.9%, and caries lesion rates of 0.2% and 1.3%, respectively (p <0.03). | 1 study · 56 participants | Ungraded |
Slum residence vs Non-slum urban residence Periodontal pocket (odds), slum vs non-slum residence · Adult residents of slums and non-slum urban settings of LMICs · Cross-sectional, Slum vs non-slum urban (Osuh 2022, Nigeria) Systematic review of oral health in slums and non-slum urban settings of Low and Middle-Income Countries… (2024) | OR 1.50 [1.13, 1.98] | 1 study · 1357 participants | Ungraded |
Periodontitis vs No periodontitis (periodontal health or gingivitis) Dental caries (prevalence) · Adults · Standard periodontitis definition Association between periodontitis and dental caries: a systematic review and meta-analysis. (2024) | OR 1.62 [1.20, 2.18] | 8 studies | Ungraded |
Male sex vs Female sex Dental caries risk · Institutionalized orphan children · Overall (pooled) Caries in orphan children: prevalence and determinants-a systematic review and meta-analysis. (2024) | RR 1.02 [0.96, 1.08] | 5 studies · 2750 participants | Very low |
Grape seed extract or grape seed flavonoid fractions vs No extract or vehicle control; other antimicrobial agents Biofilm morphology · Streptococcus mutans cultures and biofilms Effect of flavonoids from grape seed and cranberry extracts on the microbiological activity of Streptococcus… (2024) | no estimate extracted | 2 studies | Ungraded |
Silver diamine fluoride (SDF) vs Restoration (restorative treatment) Aesthetics · Children and adults (with or without carious lesions) · 6 to 12 months, Children Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | Cleary 2022 reported no significant differences (P > 0.05) in parental acceptability, satisfaction, and preference between treatments at 6 and 12 months; at 12 months children in the restoration arm felt happier with… | 1 study | Very low |
Grape seed extract (GSE) and its proanthocyanidin fractions vs Untreated or vehicle control (some studies vs positive antimicrobial controls, e.g. chlorhexidine/fluoride) Bacterial adhesion (inhibition) · Streptococcus mutans (in vitro cultures and biofilms) Effect of flavonoids from grape seed and cranberry extracts on the microbiological activity of Streptococcus… (2024) | GSE inhibited S. mutans adhesion to hydroxyapatite by 81.5% (polymeric PAC, 0.125 mg/mL) vs 25% for dealcoholized wine (Daglia); adhesion decreased at MIC 0.5 mg/mL (Smullen). | 2 studies | Ungraded |
Opal Seal fluoride-releasing primer vs Conventional Transbond XT primer Photographic white spot lesion severity · Patients undergoing fixed orthodontic treatment · During orthodontic treatment Can Orthodontic Adhesive Systems Inhibit the Formation and Development of White Spot Lesions During Fixed… (2024) | WSL severity in digital photographs: no significant difference between the two groups (p >0.05). | 1 study · 56 participants | Ungraded |
Resin-modified glass-ionomer cement (RM-GIC) for bracket bonding vs Conventional composite resin adhesive (Transbond XT) New white spot lesion incidence (and first-time bracket bond failure) · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35) · During fixed appliance treatment Can Orthodontic Adhesive Systems Inhibit the Formation and Development of White Spot Lesions During Fixed… (2024) | Benson 2019 (1 multicenter single-blind RCT, 197 patients): no difference in the proportion of patients with new WSLs or first-time bracket failures between RM-GIC and resin adhesive (p>0.05). No meta-analysis performed. | 1 study · 197 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, 12-month follow-up Efficacy of pulpotomy for permanent teeth with carious pulp exposure: A systematic review and meta-analysis… (2024) | Proportion 0.856 | NR | Ungraded |
Silver diamine fluoride (SDF) plus fluoride varnish vs Sealants plus fluoride varnish (with or without restorations) Aesthetics · 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) vs Atraumatic restorative treatment (ART) with glass ionomer cement (GIC) or glass ionomer material Secondary prevention of caries · Children and adults (with or without carious lesions) · Primary and permanent dentition Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | No studies reported this outcome | 0 studies | No studies |
nCaF2 primer vs Control Transbond primer Enamel demineralization (DIAGNOdent score) · Patients undergoing fixed orthodontic treatment · 1, 3, and 6 months after bonding Can Orthodontic Adhesive Systems Inhibit the Formation and Development of White Spot Lesions During Fixed… (2024) | Statistically significant scores in favor of the nCaF2 primer at T1, T3, and T6 (p-value = 0.000). | 1 study · 31 participants | Ungraded |
Not applicable (single-group prevalence) vs Not applicable (single-group prevalence) Proportion of ancient skulls with at least one non-carious cervical lesion (NCCL) · Ancient/prehistoric human skulls (excavated/archaeological skeletal remains) · Overall (all included studies) Investigation of the presence of Non-carious cervical lesions (NCCLs) in ancient adult skulls: analyzing… (2024) | Proportion 0.014 [0.001, 0.027] | 6 studies · 805 participants | Ungraded |
C allele vs T allele Dental caries · Children (<18 years) with vs without dental caries · Allelic model (C vs T) Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 1.33 [1.03, 1.71] | 3 studies · 1329 participants | Ungraded |
Remineralizing orthodontic adhesives vs Control orthodontic adhesives Enamel remineralization or anti-demineralization · Human teeth with early enamel lesions surrounding orthodontic brackets · 5 days to 6 months Remineralization and anti-demineralization effect of orthodontic adhesives on enamel surrounding orthodontic… (2024) | no estimate extracted | 24 studies | Ungraded |
Extraction of the permanent first molar vs None (single-group prevalence) Spontaneous space closure · Children and adolescents (<18 years) after extraction of a permanent first molar before eruption of the permanent… · 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) | Prevalence 48.1 [34.5, 62.0] | 11 studies · 1095 participants | Ungraded |
Periodontitis vs No periodontitis (periodontal health or gingivitis) Dental caries (prevalence) · Adults · Age 30-64 years Association between periodontitis and dental caries: a systematic review and meta-analysis. (2024) | OR 1.67 [1.37, 2.03] | 3 studies | Ungraded |
Cesarean section delivery vs Vaginal delivery Early childhood caries (ECC) · Children aged <6 years · Study quality (NOS): Low RETRACTED: The association between mode of childbirth delivery and early childhood caries: A comprehensive… (2024) | OR 0.95 [0.39, 2.33] | 6 studies | Ungraded |
Cesarean section delivery vs Vaginal delivery Early childhood caries (ECC) · Children aged <6 years · Confounder adjustment: No RETRACTED: The association between mode of childbirth delivery and early childhood caries: A comprehensive… (2024) | OR 0.98 [0.66, 1.47] | 15 studies | Ungraded |
Higher mean patient age (per 1 year) vs Lower mean patient age (per 1-year decrement) 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 0.59 [0.20, >100.00] | 3 studies | Ungraded |
Silver diamine fluoride (SDF) vs Sealants or resin infiltration Aesthetics · 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 | 0 studies | No studies |
CC+CT genotypes vs TT genotype Dental caries · Children (<18 years) with vs without dental caries · Dominant model (CC+CT vs TT) Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 1.87 [1.15, 3.04] | 3 studies · 1329 participants | Ungraded |
Cesarean section delivery vs Vaginal delivery Early childhood caries (ECC) · Children with average age >3 years · Average age: >3 years RETRACTED: The association between mode of childbirth delivery and early childhood caries: A comprehensive… (2024) | OR 1.24 [0.89, 1.71] | 14 studies | Ungraded |
Used a pea-sized amount of fluoride toothpaste or less vs Used more than a pea-sized amount 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 · Fluorosis assessed when most permanent teeth of interest had erupted (6 to 18 years) Topical fluoride as a cause of dental fluorosis in children (2024) · Cochrane | OR 0.92 [0.66, 1.28] | 3 studies · 2037 participants | Very low |
Intervention NR Veillonella spp. association with caries (qualitative) A systematic review of Streptococcus Mutans and Veillonellae species interactions in dental caries… (2024) | Veillonella spp. associated with caries; no quantitative estimate reported | 1 study | Ungraded |
Second molar distally inclined at extraction vs Second molar upright at extraction 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 1.18 [0.43, 3.21] | 3 studies | Ungraded |
Serum 25(OH)D < 50 nmol/l vs Serum 25(OH)D ≥ 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 2.00 [1.76, 2.28] | 6 studies · 4807 participants | Ungraded |
Slum / urban-disadvantaged setting vs Non-slum urban / general-urban / national population Dental caries experience (mean DMFT) · Adult residents of slums and non-slum urban settings of LMICs · Cross-sectional Systematic review of oral health in slums and non-slum urban settings of Low and Middle-Income Countries… (2024) | Mean DMFT (usually reported at population level) ranged from 0.26 to 16.6 across studies; the Missing component was typically highest and the Filled component lowest, reflecting limited access to dental care. | 12 studies | Ungraded |
Maternal smoking during pregnancy vs No maternal smoking during pregnancy Dental caries in children · Children of mothers assessed for smoking status during pregnancy (early childhood dental caries) · Exposure during pregnancy; caries assessed in early childhood, Sample size: <=1000 Maternal smoking during pregnancy and early childhood dental caries in children: a systematic review and… (2024) | OR 1.63 [1.11, 2.40] | 3 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) · Age: 7-15 years Childhood obesity in relation to risk of dental caries: a cumulative and dose-response systematic review and… (2024) | OR 1.25 [0.87, 1.81] | 7 studies | Ungraded |
Slum / urban-disadvantaged setting vs Non-slum urban / general-urban / national population Dental trauma prevalence · Adult residents of slums and non-slum urban settings of LMICs · Cross-sectional, Urban vs rural; slum vs non-slum Systematic review of oral health in slums and non-slum urban settings of Low and Middle-Income Countries… (2024) | Dental trauma was more prevalent in urban than rural settings and among disadvantaged groups; Osuh 2022 reported 32% (slum) vs 21% (non-slum); Tobin & Ajayi 2017 found 87.5% of trauma cases in urban vs rural areas… | NR | Ungraded |
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 study | Ungraded |
Silver diamine fluoride (SDF) vs Sealants or resin infiltration Primary caries prevention · 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 |
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, Sample collection: saliva RETRACTED: Investigating the association between Candida albicans and early childhood dental caries: A… (2024) | OR 4.70 [2.44, 9.09] | 7 studies | Ungraded |
Silver diamine fluoride (SDF) vs Placebo or no treatment Caries arrest · Children and adults (with or without carious lesions) · 24 months, Permanent dentition (root) Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | MD 0.24 [0.12, 0.36] | 1 study · 158 participants | Very low |
AA genotype vs AG+GG genotypes Dental caries · Children (<18 years) with vs without dental caries · Recessive model (AA vs AG+GG) Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 1.09 [0.70, 1.71] | 3 studies · 855 participants | Ungraded |
Teledentistry diagnosis using DSLR or smartphone extra-oral photographs vs Visual or clinical examination Negative predictive value for dental caries diagnosis · Children and adults with primary or permanent dentition · Overall Teledentistry accuracy for caries diagnosis: a systematic review of in-vivo studies using extra-oral… (2024) | no estimate extracted | 10 studies | Ungraded |