Findings

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Evidence found and GRADE certainty

4,411 questions · 5,986 findings · 226 reviews · Oral Health

No studies found 1,305 · 21.8%GRADE not reported 2,988 · 49.9%Very low 1,030 · 17.2%Low 476 · 8%Moderate 156 · 2.6%High 31 · 0.5%

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Chlorhexidine vs Ozonated water

Reduction in level of contamination by particles >5 um (droplets) at <2 m from patient's oral cavity · Dental patients undergoing aerosol-generating procedures (AGPs) and the dental healthcare providers treating them

It is very uncertain whether chlorhexidine (CHX) changes reduction in level of contamination by particles >5 um (droplets) at… compared with ozonated water (very low certainty).

1 finding from 1 review

Hope-based intervention vs Pain education

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · People aged 12 years and over with painful TMD lasting 3 months or longer

Hope-based intervention showed no clear difference in pain intensity compared with pain education; GRADE not reported.

1 finding from 1 review

Single-visit root canal treatment vs Multiple-visit root canal treatment (two or more visits)

Swelling or flare-up · People aged 10 years or above requiring root canal treatment; permanent teeth with completely formed apex and without internal resorption

It is very uncertain whether single-visit root canal treatment changes swelling or flare-up compared with multiple-visit root canal treatment (two or more visits) (very low certainty).

1 finding from 1 review

Fluoride-releasing resin-based sealant vs No sealant (control/no treatment)

Mean caries increment (mean number of new cavitated occlusal lesions) · Children with caries-free or non-cavitated carious lesion primary molars, aged 3-7 years (paediatric department, dental hospital, France)
1 finding from 1 review
  • Sealants for preventing dental caries in primary teeth 2022 · Cochrane All outcomes
    24 months
    Mean number of new cavitated occlusal lesions 0.23 (SD 0.06) in sealed molars vs 0.29 (SD 0.06) in control molars (Wilcoxon matched-pairs signed-rank test P = 0.42)
    1 study · 85 participants
    GRADE not reported

Periodontal treatment: scaling and root planing (SRP) plus advice vs Community care: advice only

All CVD-related death · Patients with cardiovascular disease and chronic periodontitis

The review found no eligible studies for this question.

1 finding from 1 review

Professional oral care vs Usual oral care

Incidence of NHAP · Residents of nursing homes and other long-term care facilities
1 finding from 1 review
  • Incidence of NHAP, follow-up 8-30 months, 5018 (5 studies), Low. Not pooled (individual and cluster-randomised designs, varying effect measures and follow-up). Component estimates: Bourigault HR 0.65 (0.29 to 1.46;…
    5 studies · 5018 participants
    Low

Concentrated growth factor (CGF) and primary wound closure vs primary closure

Healing of MRONJ (soft tissue healing) · Women with osteoporosis and established MRONJ

It is very uncertain whether concentrated growth factor (CGF) and primary wound closure changes healing of MRONJ (soft tissue healing) compared with primary wound closure only (very low certainty).

1 finding from 1 review

Professional oral care vs Usual oral care

Mortality (all‐cause) · Residents of nursing homes and other long-term care facilities
1 finding from 1 review
  • All-cause mortality, follow-up 12-30 months, 3764 (3 studies), Very low. Not pooled. Adachi RR 0.80 (0.40 to 1.58; 88); Juthani-Mehta HR 1.16 (0.88 to 1.53; 834); Zimmerman adjusted IRR 0.83 (0.61 to 1.12; 1606).…
    3 studies · 3764 participants
    Very low

Hypnosis vs relaxation

Adverse events · People aged 12 years and over with painful TMD lasting 3 months or longer
1 finding from 1 review

Traditional screening (referral card given if the inspecting dentist judges the child needs to see a dentist) vs No screening

Dental attendance · School children (aged 4 to 15 years), primary and secondary schools in the UK and India
1 finding from 1 review
  • School dental screening programmes for oral health 2022 · Cochrane All outcomes
    3 to 4 months
    Data not pooled; 6281 participants (4 RCTs); Very low. There was substantial heterogeneity, in part due to study design (3 cluster-RCTs and 1 individually randomised trial). We are unable to draw conclusions about this…
    4 studies · 6281 participants
    Very low

Periodontal treatment: scaling and root planing (SRP) plus advice vs Community care: advice only

Cardiovascular events · Patients with cardiovascular disease and chronic periodontitis
1 finding from 1 review

Full-mouth disinfection (FMD): scaling/root planing (subgingival instrumentation) of all quadrants within 24 hours plus adjunctive antiseptic (chlorhexidine) treatments (rinsing, pocket irrigation, tongue/tonsil brushing) vs Quadrant scaling and root planing (control): SRP of each quadrant in separate sessions at least one week apart

Tooth loss · Adults with a clinical diagnosis of (chronic) periodontitis (1999 classification); studies of aggressive periodontitis, systemic disorders…

The review found no eligible studies for this question.

1 finding from 1 review

Traditional screening with motivation (oral health education and offer of free treatment) vs Traditional screening

Dental attendance · School children, primary and secondary schools in India

It is very uncertain whether traditional screening with motivation (oral health education and… changes dental attendance compared with traditional screening alone (very low certainty).

1 finding from 1 review

Chlorhexidine rinse (0.12% and 0.2%, pre- and post-extraction) vs placebo or no treatment

Presence of dry socket · Adults (>18 years) having permanent tooth extraction (predominantly mandibular third molars)

Chlorhexidine rinse (0.12% and 0.2%, pre- and post-extraction) probably leads to lower presence of dry socket compared with placebo or no treatment (moderate certainty).

1 finding from 1 review

Periodontal treatment (subgingival instrumentation, with or without antimicrobials/surgery) vs usual care or no treatment

Quality of life indicators · People with diabetes mellitus (type 1 or type 2, mostly type 2) and periodontitis, at least 16 years of age
1 finding from 1 review

Fluoride-releasing resin-based sealant vs Resin-based sealant

Retention of sealant (complete or partial retention) · Children with caries-free second primary molars, aged 4-8 years (dental clinic, Turkey and Spain)
1 finding from 1 review
  • Sealants for preventing dental caries in primary teeth 2022 · Cochrane All outcomes
    6-24 months
    Effect estimate not calculable; 69 (2 studies). Retention equivocal: Unal 2015 100% (fluoride resin) vs 96.0% (resin) at 12 months; Baca 2007 84.1% (fluoride resin) vs 97.7% (resin) at 12 months; at 24 months 87.8% vs…
    2 studies · 69 participants
    Very low