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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. Every word you type has to appear somewhere in the question, and the closest matches are ranked first.
75,239 questions in 5,342 reviews
current versionsNo studies 15,213 · 20.2%Ungraded 10,323 · 13.7%Very low 17,528 · 23.3%Low 17,951 · 23.9%Moderate 11,190 · 14.9%High 3,034 · 4%
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 |
|---|---|---|---|
Summary of findings table ‐ Sodium modelling vs slow dialysis Adverse events · haemodialysis patients Interventions for preventing haemodialysis dysequilibrium syndrome (2024) · Cochrane | RR 1.33 [0.15, 11.64] | 1 study · 15 participants | Very low |
Summary of findings table ‐ Sodium modelling vs slow dialysis Duration of hospital stay ‐ not reported · haemodialysis patients Interventions for preventing haemodialysis dysequilibrium syndrome (2024) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings table ‐ High sodium dialysate vs standard sodium dialysate Dialysis dysequilibrium syndrome · haemodialysis patients Interventions for preventing haemodialysis dysequilibrium syndrome (2024) · Cochrane | RR 0.07 [0, 1.12] | 1 study · 22 participants | Very low |
Summary of findings table ‐ High sodium dialysate vs standard sodium dialysate Severe dialysis dysequilibrium syndrome · haemodialysis patients Interventions for preventing haemodialysis dysequilibrium syndrome (2024) · Cochrane | RR 0.47 [0.02, 10.32] | 1 study · 22 participants | Very low |
Summary of findings table ‐ High sodium dialysate vs standard sodium dialysate Death · haemodialysis patients Interventions for preventing haemodialysis dysequilibrium syndrome (2024) · Cochrane | no estimate extracted | 1 study · 22 participants | Very low |
Summary of findings table ‐ High sodium dialysate vs standard sodium dialysate Adverse events · haemodialysis patients Interventions for preventing haemodialysis dysequilibrium syndrome (2024) · Cochrane | RR 0.29 [0.08, 1.02] | 1 study · 22 participants | Very low |
Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors vs placebo All‐cause death median · people with CKD and diabetes Asked by 2 reviewsSodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors for people with chronic kidney disease and diabetes (2024) · Cochrane | RR 0.86 [0.81, 0.92] | 20 studies · 44397 participants | High |
Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors vs placebo 3P‐MACE median · people with CKD and diabetes Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors for people with chronic kidney disease and diabetes (2024) · Cochrane | RR 0.89 [0.81, 0.98] | 7 studies · 38320 participants | Moderate |
Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors vs placebo 4P‐MACE median · people with CKD and diabetes Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors for people with chronic kidney disease and diabetes (2024) · Cochrane | RR 0.82 [0.7, 0.96] | 4 studies · 23539 participants | Moderate |
Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors vs placebo Kidney composite outcome median · people with CKD and diabetes Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors for people with chronic kidney disease and diabetes (2024) · Cochrane | RR 0.68 [0.59, 0.78] | 7 studies · 36380 participants | High |
Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors vs placebo Kidney failure median · people with CKD and diabetes Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors for people with chronic kidney disease and diabetes (2024) · Cochrane | RR 0.7 [0.62, 0.79] | 6 studies · 11232 participants | High |
Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors vs placebo Hypoglycaemia requiring third‐party assistance median · people with CKD and diabetes Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors for people with chronic kidney disease and diabetes (2024) · Cochrane | RR 0.75 [0.65, 0.88] | 14 studies · 26478 participants | High |
Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors vs placebo Diabetic ketoacidosis median · people with CKD and diabetes Sodium‐glucose co‐transporter protein 2 (SGLT2) inhibitors for people with chronic kidney disease and diabetes (2024) · Cochrane | RR 2.05 [1.34, 3.14] | 13 studies · 38710 participants | Moderate |
wMel‐Wolbachia infected Aedes aegypti deployments vs no deployments Virologically confirmed dengue case incidence (any severity, any phenotype) · children and adults at risk of dengue infection Wolbachia ‐carrying Aedes mosquitoes for preventing dengue infection (2024) · Cochrane | no estimate extracted | NR | No studies |
wMel‐Wolbachia infected Aedes aegypti deployments vs no deployments Prevalence of DENV infection (any severity, any phenotype)a · children and adults at risk of dengue infection Wolbachia ‐carrying Aedes mosquitoes for preventing dengue infection (2024) · Cochrane | OR 0.23 [0.15, 0.35] | 6306 participants | Moderate |
wMel‐Wolbachia infected Aedes aegypti deployments vs no deployments Prevalence of dengue RNA in the mosquito population · children and adults at risk of dengue infection Wolbachia ‐carrying Aedes mosquitoes for preventing dengue infection (2024) · Cochrane | no estimate extracted | NR | No studies |
wMel‐Wolbachia infected Aedes aegypti deployments vs no deployments Mosquito density (for population suppression strategy) · children and adults at risk of dengue infection Wolbachia ‐carrying Aedes mosquitoes for preventing dengue infection (2024) · Cochrane | no estimate extracted | NR | No studies |
wMel‐Wolbachia infected Aedes aegypti deployments vs no deployments Prevalence of Wolbachia‐carrying mosquitoes (for population replacement strategy) · children and adults at risk of dengue infection Wolbachia ‐carrying Aedes mosquitoes for preventing dengue infection (2024) · Cochrane | no estimate extracted | NR | No studies |
wMel‐Wolbachia infected Aedes aegypti deployments vs no deployments Adverse events potentially related to Wolbachia‐carrying Aedes deployments · children and adults at risk of dengue infection Wolbachia ‐carrying Aedes mosquitoes for preventing dengue infection (2024) · Cochrane | no estimate extracted | NR | No studies |
Intervention NR Difference between effect estimates from RCTs and observational studies [for RCTs vs OBSs] · systematic reviews and overviews of systematic reviews Healthcare outcomes assessed with observational study designs compared with those assessed in randomized… (2024) · Cochrane | no estimate extracted | NR | Low |
Highest BMI category (overweight/obese) vs Lowest BMI category (normal weight/underweight) Dental caries / early childhood caries (ECC) · Children (approx. 4-18 years) · Dental examinations of children; 15 countries across Europe, Asia, the Americas and Oceania, Adjustment for sex: yes Childhood obesity in relation to risk of dental caries: a cumulative and dose-response systematic review and… (2024) | OR 1.30 [0.99, 1.71] | 10 studies | 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) Sensitivity · Children and adults with primary or permanent dentition undergoing dental caries assessment · Cross-sectional diagnostic accuracy (index test vs reference standard, in-vivo), In-vivo: dental clinics/hospitals, schools, and a juvenile detention facility (11 countries), Overall (studies reporting sensitivity; narrative synthesis) Teledentistry accuracy for caries diagnosis: a systematic review of in-vivo studies using extra-oral… (2024) | Sensitivity Overall 48% to 98.3% across 13 studies; sensitivity is lesion-stage dependent: Kohara reported <40% for initial/moderate caries (75-100% for extensive) and early enamel lesions were less sensitive | 13 studies | Ungraded |
Fixed orthodontic treatment with fixed (multibracket) appliances (exposure) vs None (single-group prevalence/incidence estimate) Association between orthodontic treatment duration and ICLs incidence · Patients undergoing fixed orthodontic treatment with fixed (multibracket) appliances, followed for development of new… · During or after fixed orthodontic treatment, International (16 countries; studies published 2005-2022); orthodontic clinical settings, By orthodontic treatment duration (subgroup meta-analysis; positive association, P<.01) Distribution of initial caries lesions in relation to fixed orthodontic therapy. A systematic review and… (2024) | Incidence of new ICLs positively associated with orthodontic treatment duration (meta-regression, P<.01); effect size/slope not available (Fig. 6b image not provided) | NR | Ungraded |
Probiotics (any strain, dose, or presentation), minimum intake duration 0.2 months vs No treatment or placebo (control) Number of dental caries (carious pieces) · Children and/or adolescents (<18 years) without background systemic disease · follow-up: mean 26 months, Healthy children and/or adolescents (<18 years) without systemic disease; RCTs from multiple countries (India, Thailand, Spain, Australia, New Zealand, Sweden, Poland, Colombia, Saudi Arabia); mostly school/community and clinic settings, Overall (all presentations pooled) Efficacy of Probiotic Consumption on Oral Outcomes in Children and/or Adolescents: A Meta-Analysis. (2024) | MD -0.24 [-0.72, 0.23] | 6 studies · 1049 participants | Low |
Consumption of xylitol chewing gum by women (mothers) vs Consumption of CHX/xylitol gum by women, or CHX varnish applied to women's dentition defs 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 | MD -0.28 [-0.83, 0.27] | 1 study · 96 participants | Very low |
Silver diamine fluoride (SDF; 38% in most trials, 30% in three) vs Placebo (inactive control) Caries arrestment at the individual (patient) level · Children and adults with active dental caries (aged 1-50; mostly preschool/school children with primary dentition) · 3 weeks to 12 months, Children/adults with dental caries; multiple countries; community/clinic care setting not clearly specified, SDF vs placebo The role of silver diamine fluoride as dental caries preventive and arresting agent: a systematic review and… (2024) | OR 18.10 [3.89, 84.15] | 2 studies · 102 participants | Ungraded |
Silver diamine fluoride (SDF) vs Glass ionomer cement (GIC) plus fluoride varnish Caries arrest · Children and adults (with or without carious lesions) · 6 months, Primary dentition (coronal) Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | OR 1.89 [0.61, 5.87] | 1 study · 69 participants | Very low |
Silver diamine fluoride (SDF) vs Fluoride varnish Secondary prevention of caries · Children and adults (with or without carious lesions) · 30 months, Primary dentition Topical silver diamine fluoride (SDF) for preventing and managing dental caries in children and adults (2024) · Cochrane | MD 0.04 [-0.30, 0.38] | 1 study · 309 participants | Very low |
Breastfeeding for <6 months vs Breastfeeding for ≥6 months Dental caries (early childhood caries) · Preschool children (<6 years) · Preschool children in high- and middle-income countries; caries assessed in clinical or field/community settings, Cohort studies Association of Breastfeeding and Early Childhood Caries: A Systematic Review and Meta-Analysis. (2024) | RR 0.97 [0.88, 1.06] | 6 studies · 4850 participants | Ungraded |
Xylitol (low-intensity sweetener/sugar alcohol) in food products (chewing gum, milk, candy, or tablets) vs No treatment (no gum / no intervention) Change in Mutans streptococci (MS) count in dental plaque · Generally healthy individuals across all age groups (infants to elderly) · Post-consumption endpoint (trial durations 2 wk to 6 mo), All age groups, generally healthy; multiple countries; sugar substitutes delivered as chewing gum, milk, candy, or tablets, Xylitol gum vs no treatment (5 studies, mixed ages) Clinical Effects of Sugar Substitutes on Cariogenic Bacteria: A Systematic Review and Meta-Analysis. (2024) | SMD -0.73 [-1.09, -0.37] | 5 studies · 308 participants | Ungraded |
Not applicable (single-group prevalence) vs Not applicable (single-group prevalence) Poor (inadequate) oral hygiene (prevalence) · Children (<18 years) with intellectual and developmental disabilities (IDD) in India · India (Karnataka, Tamil Nadu, Rajasthan, Maharashtra); schools/institutions and community, Overall Oral health status of children with intellectual and developmental disabilities in India: a systematic… (2024) | Prevalence 38 [21, 59] | 5 studies · 1333 participants | Ungraded |
TT+TC genotypes vs CC genotype Dental caries · Children (<18 years) with vs without dental caries · Dominant model (TT+TC vs CC), Children under 18 years; case-control and cross-sectional studies (China, Czech Republic, Turkey, Brazil, India) Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 0.75 [0.54, 1.05] | 5 studies · 1606 participants | Ungraded |
Minimally invasive caries removal (MIT): selective removal to soft dentin, self-limiting chemomechanical removal, or partial/incomplete caries removal vs Conventional caries removal (CT): selective removal to firm dentin, stepwise excavation, or complete caries removal Restoration/treatment success rate · Patients with deep carious lesions in permanent (mainly posterior) teeth · 1 to 5 years (follow-up varied by study) Comparative Meta-Analysis of Minimally Invasive and Conventional Approaches for Caries Removal in Permanent… (2024) | Mean success-rate percentage (unweighted study-level mean, 7 studies) MIT 83.6% vs CT 75.4% (Mann-Whitney U = 0.2, p > 0.05; not statistically significant) | 7 studies · 1305 participants | Ungraded |
Occlusal splint vs Another occlusal splint with a different mechanism of action Range of mandibular motion · People with temporomandibular disorders (TMD) · Short term (12 weeks), Mixed TMD Occlusal interventions for managing temporomandibular disorders (2024) · Cochrane | MD 0.63 [-3.16, 4.42] | 1 study · 40 participants | 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), Children under 18 years; case-control and cross-sectional studies (China, Czech Republic, Turkey, Brazil, India), Primary dentition Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 1.49 [0.97, 2.28] | NR | Ungraded |
TT+TC genotypes vs CC genotype Dental caries · Children (<18 years) with vs without dental caries · Dominant model (TT+TC vs CC), Children under 18 years; case-control and cross-sectional studies (China, Czech Republic, Turkey, Brazil, India), Asian ethnicity Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 0.69 [0.44, 1.07] | NR | Ungraded |
Orthodontic adhesives containing bioactive glass (BAG) particles/nanoparticles (including fluoride- or Ga-doped BAG) vs Conventional/control orthodontic adhesive (e.g., Transbond XT) or negative control Ion release (fluoride, calcium, phosphate) · Human enamel specimens around orthodontic brackets (in vitro) · 14 days [31] and 20 days [27,28] (per Discussion); ion-release durations for [23,24] not reported, In vitro (laboratory), Overall Remineralization and anti-demineralization effect of orthodontic adhesives on enamel surrounding orthodontic… (2024) | Ion release from BAG-containing adhesives was assessed in 5 studies [23, 24, 27, 28, 31]; a significant increase of phosphate ion release with gallium-doped bioactive glass nanoparticles up to 14 days was reported… | 5 studies | Ungraded |
Oral health education/promotion (oral hygiene advice plus diet and feeding practice advice) combined with clinical treatment for mother's dentition (basic restorative and preventive; 1 trial included CHX varnish application) vs Standard care Caries presence in primary teeth · For interventions, pregnant women and mothers of infants in the first year of life; for outcomes, children up to 6… · Children assessed at 18-24 months Interventions with pregnant women, new mothers and other primary caregivers for preventing early childhood… (2024) · Cochrane | RR 0.44 [0.05, 3.95] | 2 studies · 324 participants | Very low |
nCaF2 primer vs Control Transbond primer Streptococcus mutans count · Patients undergoing fixed orthodontic treatment · 1, 3, and 6 months after bonding, Fixed orthodontic treatment Can Orthodontic Adhesive Systems Inhibit the Formation and Development of White Spot Lesions During Fixed… (2024) | Statistically significant difference in bacterial count between the two primers only at T1 (p-value = 0.000). | 1 study · 31 participants | Ungraded |
Facemask vs Untreated control (no treatment) Overjet · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion) · 3-year follow-up Orthodontic treatment for prominent lower front teeth (Class III malocclusion) in children (2024) · Cochrane | MD 2.50 [1.21, 3.79] | 1 study · 63 participants | Moderate |
Facemask with rapid maxillary expansion (RME) vs Facemask only Overjet · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion) · End of treatment Orthodontic treatment for prominent lower front teeth (Class III malocclusion) in children (2024) · Cochrane | MD 1.86 [0.39, 3.33] | 1 study · 31 participants | Low |
Antioxidants (lycopene, curcumin, Oxitard) vs Placebo or no active treatment Participant satisfaction · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF) Interventions for managing oral submucous fibrosis (2024) · Cochrane | The trials did not measure participant satisfaction. | 0 studies | No studies |
Grape seed extract (GSE) and its proanthocyanidin fractions vs Untreated or vehicle control (some studies vs positive antimicrobial controls, e.g. chlorhexidine/fluoride) Biofilm formation (reduction) · Streptococcus mutans (in vitro cultures and biofilms) · in vitro (laboratory) Effect of flavonoids from grape seed and cranberry extracts on the microbiological activity of Streptococcus… (2024) | GSE reduced biofilm formation: 89% (polymeric PAC) vs 79% (dealcoholized wine) (Daglia), inhibition at 4 mg/mL (Zhao), decreased microcolonies with 2000 ug/mL GSE + fluorinol (Furiga), reduction within 30 min… | 5 studies | Ungraded |
Superelastic NiTi arch wire vs Thermoelastic NiTi arch wire Alignment rate · People receiving orthodontic treatment with fixed appliances (upper and/or lower full arch) · 4 to 16 weeks Initial arch wires used in orthodontic treatment with fixed appliances (2024) · Cochrane | MD -0.28 [-0.62, 0.06] | 5 studies · 183 participants | Low |
Advice about a healthy diet (including breastfeeding promotion and sugar avoidance) and feeding practices (e.g. relating to bottle-feeding and sleep) for infants and young children vs Standard care dmft index score (decayed, missing, filled primary teeth; range 0-20) · For interventions, pregnant women, mothers or other caregivers of infants in the first year of life; for outcomes,… · Children assessed at 4 yrs Interventions with pregnant women, new mothers and other primary caregivers for preventing early childhood… (2024) · Cochrane | MD -0.90 [-1.85, 0.05] | 1 study · 340 participants | Very low |
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), Children under 18 years; case-control and cross-sectional studies (China, Czech Republic, Turkey, Brazil, India), Asian ethnicity Association of vitamin D receptor gene polymorphisms with caries risk in children: a systematic review and… (2024) | OR 1.38 [1.02, 1.87] | NR | Ungraded |
Cranberry extract or cranberry flavonoid fractions vs No extract or vehicle control; other antimicrobial agents Biofilm formation · Streptococcus mutans cultures and biofilms · In vitro laboratory studies Effect of flavonoids from grape seed and cranberry extracts on the microbiological activity of Streptococcus… (2024) | no estimate extracted | 10 studies | Ungraded |
Intralesional betamethasone vs Placebo Maximal mouth opening (interincisal distance) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF) Interventions for managing oral submucous fibrosis (2024) · Cochrane | Goel 2015 (3-arm: intralesional betamethasone vs lycopene vs placebo, 90 per arm): appeared to show increased interincisal distance in both intervention groups vs placebo, but only between-group differences with no… | 1 study · 180 participants | Ungraded |
Intralesional triamcinolone vs Intralesional triamcinolone plus salvianolic acid B Burning sensation (VAS 0-100) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF) · Less than 3 months Interventions for managing oral submucous fibrosis (2024) · Cochrane | MD -1.00 [-10.37, 8.37] | 1 study · 28 participants | Very low |
Gene sequencing (GS) applied to diagnose/manage oral conditions (predominantly 16S rRNA next-generation sequencing of the oral microbiome; also genome-wide/whole-genome sequencing) vs Negligible ('abysmal') effect of gene sequencing; no separate comparator arm (within-sample event contrast in the forest plots) Noticeable impact of gene sequencing on diagnosing/managing oral conditions · Human patients (any age) with oral-cavity related disorders (e.g. dental caries, periodontitis, gingivitis,… · Various countries; clinical trials of the oral microbiome/genetics, Overall Gene sequencing applications to combat oral-cavity related disorders: a systematic review with meta-analysis. (2024) | OR 0.30 [0.26, 0.33] | 8 studies · 2211 participants | Ungraded |