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%

Chlorhexidine mouthwash vs placebo

Cariogenic bacteria (Mutans streptococci) · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)

Chlorhexidine mouthwash reduced Mutans streptococci versus placebo, but certainty is very low.

1 finding from 1 review

Resin infiltration vs P11-4 + 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…

Resin infiltration and P11-4 plus fluoride varnish did not differ significantly (SMD 0.01, 95% CI -0.62 to 0.65; indirect evidence only); certainty of evidence not assessed (no GRADE).

1 finding from 1 review

Calcium-enriched mixture (CEM) cement vs Mineral trioxide aggregate (MTA)

Overall success (composite of clinical and radiographic success) · Patients with carious pulp exposure in permanent teeth undergoing pulpotomy

MTA and CEM performed comparably for clinical and radiographic success (2 RCTs, not pooled; ungraded).

1 finding from 1 review

Light-cured resin-modified glass ionomer cement vs Glass ionomer cement (GIC)

Secondary caries · Patients requiring dental restoration; permanent teeth

Over 1 year in permanent teeth, secondary caries did not differ significantly between RMGIC and GIC (RR 1.82, 95% CI 0.45-7.28; low certainty).

2 findings from 1 review

Malocclusion vs No malocclusion

Oral health-related quality of life · Indian children, adolescents and adults

One GOHAI study found no significant difference in OHRQoL by malocclusion status; ungraded.

3 findings from 1 review

Bruxism vs No bruxism

Oral health-related quality of life · Indian children and adults

Two studies found bruxers have poorer OHRQoL than non-bruxers; narrative, ungraded.

1 finding from 1 review

Chlorhexidine mouthwash vs Blank control

Cariogenic bacteria (Mutans streptococci) · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)

Chlorhexidine mouthwash reduced Mutans streptococci versus blank control, but certainty is very low.

1 finding from 1 review

Composite resin vs Glass ionomer cement (GIC)

Secondary caries · Patients requiring dental restoration; permanent teeth

Over 1 year in permanent teeth, resin composite showed no statistically significant difference in secondary caries versus GIC (RR 3.05, 95% CI 0.95-9.79; low certainty).

2 findings from 1 review

Herbal mouthwash vs placebo

Plaque · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)

Herbal mouthwash reduced some plaque-related indices versus placebo, with low-certainty evidence.

1 finding from 1 review

Fluoride mouthwash vs Blank control

Cariogenic bacteria (Mutans streptococci) · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)

Short-term fluoride mouthwash reduced Mutans streptococci, but certainty is very low.

2 findings from 1 review

Chlorhexidine mouthwash vs Placebo mouthwash

Probing pocket depth (PPD/PD) · Orthodontic patients (any age) undergoing orthodontic treatment (mostly fixed appliances)

Chlorhexidine mouthwash may reduce pocket probing depth versus placebo in the short term (low certainty).

1 finding from 1 review

Clear aligners (Invisalign / thermoformed aligners) vs Conventional orthodontic appliance treatment

White spot lesion incidence · Orthodontic patients undergoing comprehensive treatment (late mixed or permanent dentition, no active caries)

Most studies reported a lower incidence of white spot lesions with clear aligners than fixed appliances, but heterogeneous assessment methods precluded meta-analysis (ungraded).

1 finding from 1 review

Pre-operative caries fillings or crowns vs Intact teeth

Pulp necrosis · Vital teeth

One study reported a 13% incidence in teeth with pre-operative caries fillings or crowns.

2 findings from 1 review

Pre-operative bone level < 35% vs Pre-operative bone level ≥ 35%

Periapical pathosis incidence · Vital teeth

One study reported a 1.4% incidence with bone level < 35%.

2 findings from 1 review

Dental caries vs Caries-free controls

Oral health-related quality of life · Indians

In adolescents (10-19 years), dental caries was associated with poorer OHRQoL (pooled OR 3.92; 5 studies); ungraded.

5 findings from 1 review
Show 2 more findings

Resin infiltration 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…

Resin infiltration did not differ significantly from P11-4 alone (SMD -0.39, 95% CI -0.97 to 0.20); certainty of evidence not assessed (no GRADE).

1 finding from 1 review

Glass ionomer cement vs Resin-modified glass ionomer cement (RMGIC)

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

Over 2 or more years in deciduous teeth, GIC probably had a higher risk of secondary caries than RMGIC (RR 1.92, 95% CI 1.03-3.56; moderate certainty).

1 finding from 1 review

Eugenol-based temporary cement vs Eugenol-free temporary cement

Pulp necrosis · Vital teeth

The pooled incidence with eugenol-based temporary cement was 3.34%.

2 findings from 1 review

Compomer (Dyract) vs Glass ionomer cement (GIC)

Secondary caries · Patients requiring dental restoration; permanent teeth

Over 2 or more years in permanent teeth, the effect of compomer versus GIC on secondary caries is very uncertain (RR 3.20, 95% CI 0.59-17.33; very low certainty).

1 finding from 1 review

Bioactive restorative materials (RMGIC and compomer combined) vs Resin composite restoration

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

In deciduous teeth at 1 year, pooled bioactive materials (RMGIC and compomer) showed no significant difference from resin composite in secondary caries (RR 0.54, 95% CI 0.07-4.10; ungraded).

1 finding from 1 review