Findings

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Evidence found and GRADE certainty

3,556 questions · 10,375 findings · 429 reviews · All outcomes

No studies found 1,344 · 13%GRADE not reported 6,832 · 65.9%Very low 1,228 · 11.8%Low 613 · 5.9%Moderate 290 · 2.8%High 68 · 0.7%

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Pentoxifylline vs Placebo or no active treatment

Burning sensation (VAS 0-100) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)

It is very uncertain whether pentoxifylline changes burning sensation (VAS 0-100) compared with placebo or no active treatment (very low certainty).

1 finding from 1 review

Fixed orthodontic treatment with fixed (multibracket) appliances (exposure) vs None (single-group prevalence/incidence estimate)

Prevalence of ICLs (proportion of subjects affected) · Patients (permanent dentition) during or after fixed orthodontic treatment with fixed (multibracket) appliances

Around 57% of patients had ICLs during or after fixed orthodontic treatment (pooled prevalence 0.57, 95% CI 0.48-0.65; very low certainty; very high heterogeneity).

1 finding from 1 review

Adjunctive antimicrobial photodynamic therapy (aPDT) applied after subgingival instrumentation (SI) vs Subgingival instrumentation (SI) alone (hand or power-driven, or both), or SI plus placebo/sham aPDT

Any adverse effect related to aPDT · Adults (> 18 years) with recurrent periodontitis, receiving supportive (maintenance) periodontal care
1 finding from 1 review

Package of oral health education/promotion including oral hygiene advice for pregnant women, mothers, infants and young children, plus dietary and feeding practice advice for infants and young children vs usual care

SiC30 index score · For interventions, pregnant women, mothers or other caregivers of infants in the first year of life; for outcomes, children up to 6 years…

Package of oral health education/promotion including oral hygiene… led to lower siC30 index score compared with standard care; GRADE not reported.

1 finding from 1 review

Facemask vs no intervention

Perceived need for surgery in adulthood · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Facemask may leads to higher perceived need for surgery in adulthood compared with untreated control (no treatment) (low certainty).

1 finding from 1 review

Non-syndromic cleft lip and palate (CLP) status and its oral microbiota (exposure/grouping) vs Children and adolescents aged 0-18 years without CLP (controls)

Periodontal conditions (gingival inflammation, bleeding on probing, probing depth, clinical attachment loss) · Children and adolescents aged 0-18 years with non-syndromic cleft lip and palate (CLP)

Narrative synthesis of 6 studies suggests children/adolescents with CLP have poorer periodontal status (higher gingival and plaque indices, deeper probing, more bleeding and attachment loss) and harbor periodontopathogens; no pooled estimate and the evidence is ungraded.

1 finding from 1 review

One-step adhesive bonding system (GC Ortho Connect) vs Conventional multi-step adhesive systems (three-step Transbond XT; self-etch primer Transbond Plus)

White spot lesion development (QLF: mineral loss, lesion area/depth, new lesions) · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35)

A single RCT found the one-step adhesive without a primer (GC Ortho Connect) produced more and more severe white spot lesions than conventional multi-step systems (ungraded).

1 finding from 1 review

rs4801882 effect allele G (intron variant in SIGLEC5, chr19:52,127,053) vs Non-effect allele A

Dental caries · Adults from Japanese and European cohorts (present-study Japanese direct-to-consumer cohort + GLIDE consortium and UK Biobank European…

Meta-analysis identified a novel genome-wide-significant locus for dental caries at rs4801882 in SIGLEC5 (P=1.71E-08); ungraded.

1 finding from 1 review

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

d/D dft/DFT or dmft/DMFT score differences · Children and adults with primary or permanent dentition

Eight studies calculated caries-score differences; six reported no significant difference, one underestimation, and one overestimation with teledentistry.

1 finding from 1 review

Oral cancer patients (cases) vs Healthy controls

Periodontitis (clinical attachment loss) · Adults in case-control studies (oral cancer patients vs healthy controls)

Clinical attachment loss was significantly greater in oral cancer patients than controls (SMD 1.94, 95% CI 0.22-3.66), though heterogeneity was very high (I2=96.7%); ungraded.

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 7 days · Adults with symptomatic apical periodontitis (no signs of spreading infection or systemic involvement)
1 finding from 1 review

Clearfil Protect Bond antibacterial fluoride-releasing primer vs Conventional Transbond XT primer

Bracket (bond) failure · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)

Clearfil Protect Bond showed no difference in bracket failure, with certainty not graded.

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 prevalence · Nigerian individuals, including children and adults, with primary or permanent dentition

High-frequency sugar consumption was associated with 18% higher but non-significant odds of dental caries in Nigeria (OR 1.18, 95% CI 0.87 to 1.59; I2=36%; ungraded).

1 finding from 1 review