Findings

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Evidence found and GRADE certainty

3,323 questions · 5,762 findings · 263 reviews · Dental caries

No studies found 321 · 5.6%GRADE not reported 4,450 · 77.2%Very low 455 · 7.9%Low 297 · 5.2%Moderate 200 · 3.5%High 39 · 0.7%

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Cranberry extract or cranberry flavonoid fractions vs No extract or vehicle control; other antimicrobial agents

Biofilm formation · Streptococcus mutans (in vitro cultures and biofilms)

No meta-analysis was conducted; ten included studies reported reduced or inhibited Streptococcus mutans biofilm formation with cranberry extract or fractions.

1 finding from 1 review

High-frequency sugar consumption (three or more times daily) vs Low sugar intake (fewer than three times daily)

Dental caries in permanent teeth · Nigerian individuals with permanent dentition (approximately 12 years and older)

In permanent dentition, high-frequency sugar consumption was associated with non-significant 15% higher odds of caries (OR 1.15, 95% CI 0.88 to 1.52), with no heterogeneity (I2=0%; ungraded).

1 finding from 1 review

Not applicable (single-group prevalence) vs Not applicable (single-group prevalence)

Proportion of teeth with non-carious cervical lesions (NCCLs) in ancient skulls · Ancient/prehistoric human skulls (excavated/archaeological skeletal remains)

Non-carious cervical lesions affected a pooled proportion of about 0.4% of teeth in ancient skulls (4 studies; ungraded, very high heterogeneity I2=97.6%).

1 finding from 1 review

Sociodemographic and behavioural factors (older age, lower education, lower income, poor oral hygiene/brushing, smoking, disadvantaged/slum residence, sex) vs Referent groups (younger, higher education/income, better oral hygiene, non-slum residence)

Determinants of oral diseases · Adult residents of slums and non-slum urban settings of LMICs

Age, education, income, oral-hygiene behaviour, dental-visit pattern and slum/disadvantaged residence are associated with oral disease; gender effects are disease-specific; ungraded.

1 finding from 1 review

Teledentistry diagnosis using DSLR or smartphone extra-oral photographs vs Visual or clinical examination

Intra-examiner reliability · Children and adults with primary or permanent dentition

Intra-examiner kappa statistics ranged from 0.52 to 1.00 across 6 studies; no meta-analysis or GRADE rating was reported.

1 finding from 1 review

Grape seed extract or grape seed flavonoid fractions vs No extract or vehicle control; other antimicrobial agents

Cell damage or cytotoxicity · Streptococcus mutans (in vitro cultures and biofilms)

No meta-analysis was conducted; one included study reported very low cell damage with grape seed extract.

1 finding from 1 review

Teledentistry (index test): dental caries diagnosis from photographs taken with DSLR or smartphone cameras; store-and-forward vs Visual or clinical examination

Inter-examiner reliability · Children and adults with primary or permanent dentition undergoing dental caries assessment

Inter-examiner reliability ranged from kappa 0.44 to 0.91 across 13 studies (moderate to almost perfect agreement); certainty not graded.

1 finding from 1 review

Xylitol (low-intensity sweetener/sugar alcohol) in food products (chewing gum, milk, candy, or tablets) vs Sorbitol (low-intensity sweetener)

Change in Mutans streptococci (MS) count in dental plaque · healthy people

Xylitol reduced Mutans streptococci in dental plaque more than sorbitol (SMD -0.45, 95% CI -0.69 to -0.21; 4 trials, I2=7%); not GRADE-rated.

1 finding from 1 review

Indirect bonding using flowable composite adhesive (Opal Bond MV) vs Direct bonding (conventional, Transbond XT)

White spot lesion formation (QLF: fluorescence loss, lesion area) · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)

Indirect bonding with a flowable adhesive favored less QLF-measured demineralization, with certainty not graded.

1 finding from 1 review

TT+GG (homozygous) genotypes vs TG (heterozygous) genotype

Dental caries · Children (<18 years) with vs without dental caries

TaqI/BglI(rs739837) over-dominant model: TT+GG vs TG was not significantly associated with dental caries (OR 0.89); ungraded.

1 finding from 1 review

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)

One study reported antioxidant activity of cranberry polyphenol fractions (ungraded).

1 finding from 1 review

Silver diamine fluoride (SDF) 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)

SDF probably makes little to no difference to surface-level caries arrestment versus other methods (moderate certainty).

1 finding from 1 review

Primary teeth / primary dentition (younger children) vs Permanent teeth / permanent dentition (older children)

Dental caries susceptibility · Institutionalized orphan children (roughly 3 to 18 years)

Primary teeth may carry a higher caries risk than permanent teeth in institutionalized children (RR 1.31), but the difference is not statistically significant (very low certainty).

1 finding from 1 review

Silver diamine fluoride (SDF) vs Fluoride varnish

Caries arrest · Children and adults (with or without carious lesions)

The review found no eligible studies for this question.

3 findings from 1 review

Overweight/obesity (combined) vs Normal Weight or Non‐Obese

Dental caries prevalence · Brazilian children under 5 years in primary dentition (BMI classified by WHO 2006 Z-score)

The evidence is very uncertain about the effect of overweight/obesity on caries odds in the primary dentition (WHO 2006 Z-score; very low certainty).

1 finding from 1 review

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)

SNP-based heritability of dental caries was low (h2=0.0258, SE 0.0155); ungraded.

1 finding from 1 review

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

SDF showed a higher caries-free proportion at the tooth level, but the reported difference was not statistically significant.

1 finding from 1 review