Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,297 questions · 3,638 findings · 215 reviews · Oral Health

No studies found 98 · 2.7%GRADE not reported 2,946 · 81%Very low 263 · 7.2%Low 158 · 4.3%Moderate 137 · 3.8%High 36 · 1%

Light-cured resin-modified glass ionomer cement vs Resin composite restoration

Secondary caries · Patients requiring dental restoration; deciduous (primary) teeth

In deciduous teeth at 1 year, a single small trial found no difference in secondary caries between RMGIC and resin composite (RR 1.03, 95% CI 0.07-15.81; ungraded).

1 finding from 1 review

Mutans streptococci present in oral samples at baseline vs Mutans streptococci absent in oral samples at baseline

Future caries experience (dmft/dmfs) · Children younger than 6 years with caries-free primary dentition (no cavitated or non-cavitated lesions at baseline)

Children with mutans streptococci at baseline had a greater future caries experience (SMD 0.85, a large effect; ungraded).

1 finding from 1 review

Calcium hydroxide (CH) vs Mineral trioxide aggregate (MTA)

Continued root formation / root development · Patients with carious pulp exposure in permanent teeth (predominantly immature) undergoing DPC or pulpotomy

Evidence on continued root formation for calcium hydroxide versus MTA is weak and inconclusive (3 RCTs, not pooled; ungraded).

1 finding from 1 review

Mineral trioxide aggregate (MTA) vs Calcium hydroxide (CH)

Overall success (composite of clinical and radiographic success) · Patients with carious pulp exposure in permanent teeth with mixed root development

The effect of MTA versus CH in teeth with mixed root development is very uncertain (very low certainty).

1 finding from 1 review

P11-4 + fluoride varnish vs Self-assembling peptide P11-4

Remineralization / reduction in lesion severity (change in QLF, laser fluorescence, or lesion area) · Patients with white spot lesions / early caries lesions (WSLs/ECLs), including orthodontic and non-orthodontic lesions, active caries…

P11-4 plus fluoride varnish did not differ significantly from P11-4 alone (SMD -0.40, 95% CI -0.97 to 0.17; indirect evidence only); certainty of evidence not assessed (no GRADE).

1 finding from 1 review

Amalgam (AAG) vs Glass ionomer cement (GIC)

Secondary caries · Patients requiring dental restoration; permanent teeth

Over 2 or more years in permanent teeth, amalgam had a higher risk of secondary caries than GIC (RR 1.79, 95% CI 1.04-3.09; low certainty).

1 finding from 1 review

Probiotic mouthwash (e.g., Lactobacillus-based) vs Blank control

Cariogenic bacteria (Mutans streptococci) · Orthodontic patients (any age) undergoing orthodontic treatment (mostly fixed appliances)

Probiotic mouthwash has inconsistent effects on Mutans streptococci colony counts versus blank control; the evidence is very uncertain (very low certainty).

1 finding from 1 review

Daily chewing gum for 2 weeks or longer vs No gum chewing or control

Salivary flow rate (unstimulated) · Elderly (>60 years) and medically compromised adults with xerostomia / dry mouth

codex

1 finding from 1 review

Fluoride varnish vs Placebo or no active treatment

Remineralization / reduction in lesion severity (change in QLF, laser fluorescence, or lesion area) · Patients with white spot lesions / early caries lesions (WSLs/ECLs), including orthodontic and non-orthodontic lesions, active caries…

Fluoride varnish (gold standard) did not differ significantly from control (SMD -0.25, 95% CI -0.51 to 0.02); certainty of evidence not assessed (no GRADE).

1 finding from 1 review

Chlorhexidine mouthwash vs Placebo mouthwash

Gingival index (GI) · Orthodontic patients (any age) undergoing orthodontic treatment (mostly fixed appliances)

Chlorhexidine mouthwash probably reduces the Gingival Index versus placebo in the short term (WMD -0.45, 95% CI -0.70 to -0.20; low certainty).

1 finding from 1 review

0-19 remaining teeth vs Individuals without functional edentulism

Oral health-related quality of life · Indian elderly

Evidence on functional edentulism and OHRQoL is inconsistent across two studies (very low certainty).

2 findings from 1 review

Dental caries vs Caries-free status

CA VI concentration · Individuals assessed for dental caries (cases with caries/high caries vs. caries-free or low/very-low-caries controls)

CA VI concentration was lower in participants with caries (SMD -0.66, 95% CI -1.00 to -0.32; 2 studies, 141 participants); GRADE was not reported.

1 finding from 1 review

Self-assembling peptide P11-4 vs Fluoride varnish

Remineralization / reduction in lesion severity (change in QLF, laser fluorescence, or lesion area) · Patients with white spot lesions / early caries lesions (WSLs/ECLs), including orthodontic and non-orthodontic lesions, active caries…

Self-assembling peptide P11-4 did not differ significantly from fluoride varnish (SMD -0.31, 95% CI -0.71 to 0.09); certainty of evidence not assessed (no GRADE).

1 finding from 1 review

Vitamin D deficiency (serum 25(OH)D < 50 nmol/L) vs Normal vitamin D level (serum 25(OH)D ≥ 50 nmol/L)

Dental caries · Children (mixed dentition; baseline about 8 years)

In children with mixed dentition, vitamin D deficiency was associated with an 8% higher caries risk (RR 1.08; ungraded).

1 finding from 1 review

Self-assembling peptide P11-4 vs CPP-ACP

Remineralization / reduction in lesion severity (change in QLF, laser fluorescence, or lesion area) · Patients with white spot lesions / early caries lesions (WSLs/ECLs), including orthodontic and non-orthodontic lesions, active caries…

Self-assembling peptide P11-4 did not differ significantly from CPP-ACP (SMD -0.38, 95% CI -0.87 to 0.11; indirect evidence only); certainty of evidence not assessed (no GRADE).

1 finding from 1 review

CPP-ACP vs CPP-ACFP

Remineralization / reduction in lesion severity (change in QLF, laser fluorescence, or lesion area) · Patients with white spot lesions / early caries lesions (WSLs/ECLs), including orthodontic and non-orthodontic lesions, active caries…

CPP-ACP did not differ significantly from CPP-ACFP (SMD 0.25, 95% CI -0.24 to 0.73); certainty of evidence not assessed (no GRADE).

1 finding from 1 review

Periodontal disease (periodontitis; clinical attachment loss >=4 mm) vs Adults without periodontal disease (healthy periodontal status; CAL <=3 mm)

Root caries (presence of root caries) · Adults (mean age ~53 years)

Adults with periodontal disease had significantly higher odds of root caries than those without (pooled OR 1.38, 95% CI 1.25 to 1.53; 2 observational studies; low certainty).

1 finding from 1 review