Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

821 questions · 993 findings · 80 reviews · Dental caries

No studies found 60 · 6%GRADE not reported 749 · 75.4%Very low 109 · 11%Low 41 · 4.1%Moderate 34 · 3.4%High 0 · 0%

Systemic sclerosis (SSc / scleroderma) vs SSc-free individuals (controls)

Periodontitis (prevalence) · Adults (general and hospital populations assessed in case-control studies)

Periodontitis prevalence is significantly higher in systemic sclerosis patients than controls (OR 7.01); certainty ungraded.

1 finding from 1 review

Clear aligners (Invisalign / thermoformed aligners) vs Fixed appliances

S. mutans presence (CFU > 10^5) · Adults undergoing orthodontic treatment

Aligners probably lower the risk of high S. mutans counts versus fixed appliances in adults at 3 months (RR 0.07, 95% CI 0.01 to 0.49; low certainty).

2 findings from 1 review

COE with light-based detection (e.g. ViziLite Plus, Microlux/DL, VELscope, Identafi 3000) vs COE with vital rinsing (toluidine blue/tolonium chloride)

Outcome not reported · Apparently healthy adults not reporting symptoms of OPMD or OSCC, attending an organised screening or surveillance programme, or screened…

The review found no eligible studies for this question.

1 finding from 1 review

Clear aligners (Invisalign / thermoformed aligners) vs Fixed appliances

Gingival index (GI) · Adults undergoing orthodontic treatment

A single study found no significant difference in gingival index between aligners and fixed appliances in adults at 6-12 weeks (MD -0.10, 95% CI -0.35 to 0.15; ungraded).

1 finding from 1 review

Systemic sclerosis (SSc / scleroderma) vs SSc-free individuals (controls)

Mean number of decayed teeth (mean DT) · Adults (general and hospital populations assessed in case-control studies)

Systemic sclerosis patients have a significantly higher number of decayed teeth than controls (SMD 0.19); certainty ungraded.

1 finding from 1 review

Caries severity measurement (mean dmft for primary dentition; mean DMFT for permanent dentition) vs None (descriptive prevalence review; subgroup analyses by urban/rural status, country and year)

Caries experience · Healthy children and adolescents (primary and permanent dentition) in the United Arab Emirates

Caries severity was substantial, with mean dmft 0.75-10.9 (primary dentition) and mean DMFT 1.48-3.19 (permanent dentition), and higher indices in Emirati than non-Emirati children (narrative synthesis; not GRADE-rated).

1 finding from 1 review

Clear aligners (Invisalign / thermoformed aligners) vs Fixed appliances

White spot lesions (WSLs), tooth level · Adults undergoing orthodontic treatment

A single study reported a lower risk of white spot lesions (tooth level) with aligners versus fixed appliances in adults at 3 months (RR 0.72, 95% CI 0.60 to 0.86; ungraded).

1 finding from 1 review

Crohn's disease (CD) vs Healthy controls without IBD

Periodontal disease (periodontitis) coincidence · Patients with Crohn's disease (CD) and controls without IBD; adults, both sexes

Patients with Crohn's disease have about 2-fold higher odds of periodontal disease than controls (pooled OR 2.10, 95% CI 1.59-2.78; 5 studies; ungraded).

1 finding from 1 review