Findings

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Evidence found and GRADE certainty

4,317 questions · 75,239 findings · 5,342 reviews

No studies found 15,213 · 20.2%GRADE not reported 10,323 · 13.7%Very low 17,528 · 23.3%Low 17,951 · 23.9%Moderate 11,190 · 14.9%High 3,034 · 4%

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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

Tandem traction bow appliance vs no intervention

Overjet · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Tandem traction bow appliance led to higher overjet compared with untreated control (no treatment); GRADE not 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

Facemask with rapid maxillary expansion (RME) vs Reverse Forsus

ANB · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Facemask with rapid maxillary expansion (RME) led to higher ANB compared with reverse Forsus; GRADE not reported.

1 finding from 1 review

Single preoperative dose of systemic antibiotics (clindamycin 600 mg), total chemo-mechanical debridement and root filling vs Matched placebo, total chemo-mechanical debridement and root filling

Pain at 72 hours · Adults with symptomatic apical periodontitis (no signs of spreading infection or systemic involvement)
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

Occlusal splint vs No treatment or placebo (non-occlusal or transparent-foil placebo splint)

Range of mandibular motion · People with temporomandibular disorders (TMD)

Occlusal splint showed no clear difference in range of mandibular motion compared with no treatment or placebo (non-occlusal or transparent-foil placebo…; GRADE not reported.

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

Systemic antibiotics without surgical intervention (with or without analgesics) vs Matched placebo without surgical intervention (with or without analgesics)

Outcome not reported · Adults with symptomatic apical periodontitis or acute apical abscess

The review found no eligible studies for this question.

1 finding 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