Findings

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Evidence found and GRADE certainty

3,556 questions · 10,375 findings · 429 reviews · Oral Health

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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Fixed tooth-borne expansion (Hyrax) vs Bonded Hyrax (tooth/tissue-borne)

Molar expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
1 finding from 1 review
  • Orthodontic treatment for posterior crossbites 2021 · Cochrane All outcomes
    3 months after completion of expansion
    Asanza 1997: banded 6 mm (min 4.3-max 7.2) vs bonded 5.9 mm (min 3.2-max 7.7); P=NS (no SD reported); no significant difference in tipping or symmetrical expansion
    1 study
    GRADE not reported

Other visual classification systems (unspecified or unique systems, e.g. Nyvad, Downer, Lussi, UniViSS) vs Reference standard (histology, excavation, radiographs/microCT, or tooth separation)

Sensitivity for detection of enamel caries · Asymptomatic children, adolescents, or adults presenting for clinical examination (in vivo studies), or extracted teeth of children or…
1 finding from 1 review

Systemic antibiotic prophylaxis (any regimen; topical therapy excluded) administered before and/or after tooth extraction vs placebo

Presence of dry socket · People undergoing tooth extraction (21 of 23 trials: healthy patients undergoing impacted third molar extraction; 1 routine intra-alveolar…

Systemic antibiotic prophylaxis (any regimen; topical therapy… may leads to lower dry socket compared with placebo (low certainty).

1 finding from 1 review

Visual caries detection (ICDAS visual/visual-tactile inspection) vs Reference standard (histology, excavation, radiographs/microCT, or tooth separation)

Sensitivity for detection of enamel caries · Asymptomatic children, adolescents, or adults presenting for clinical examination (in vivo studies), or extracted teeth of children or…
1 finding from 1 review

Diode laser, near infrared (850 nm to 980 nm) vs Placebo (placebo laser or placebo agent) or no treatment

Changes in intensity of pain (VAS 0 to 10) tested through air blast stimuli · Patients aged above 12 years with self-reported tooth hypersensitivity confirmed on clinical evaluation

Diode laser, near infrared (850 nm to 980 nm) led to lower changes in intensity of pain (VAS 0 to 10) tested through air blast… compared with placebo (placebo laser or placebo agent) or no treatment; GRADE not reported.

2 findings from 1 review

ARP with xenograft (bone graft) vs Extraction alone

Complications (e.g. discomfort, pain and swelling) · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…
1 finding from 1 review

Diode laser, near infrared (850 nm to 980 nm) vs Placebo (placebo laser or placebo agent) or no treatment

Changes in intensity of pain (VAS 0 to 10) tested through tactile stimuli · Patients aged above 12 years with self-reported tooth hypersensitivity confirmed on clinical evaluation

Diode laser, near infrared (850 nm to 980 nm) led to lower changes in intensity of pain (VAS 0 to 10) tested through tactile… compared with placebo (placebo laser or placebo agent) or no treatment; GRADE not reported.

2 findings 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

Intensive periodontal treatment (subgingival SRP with or without other periodontal treatment) vs No treatment (no periodontal treatment)

Plasma level of hs-CRP (mg/L) · Adults (any age/sex) with chronic periodontitis (>=5 teeth remaining; PPD >4 mm), with or without hypertension

Periodontal treatment (subgingival SRP with or without other… showed no clear difference in plasma level of hs-CRP (mg/L) compared with no treatment (no periodontal treatment); GRADE not reported.

4 findings from 1 review
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Any of the interventions (CR, SE, SW, sealing with sealant materials, Hall Technique, or NRCC) vs Each other, placebo, or no treatment

Subjective evaluation of the treatments by participants · Children and/or adults with permanent or primary teeth, vital (sensitive) pulps, and cavitated or dentine carious lesions conventionally…

The review found no eligible studies for this question.

1 finding from 1 review

Double primary (canine and first molar) tooth extraction vs Single primary (canine) tooth extraction

Number of participants referred for surgical exposure of the PDC · Young people aged 9 to 14 years diagnosed with one or both palatally displaced permanent maxillary canines (PDC)

It is very uncertain whether double primary (canine and first molar) tooth extraction changes number of participants referred for surgical exposure of the PDC compared with single primary (canine) tooth extraction (very low certainty).

1 finding from 1 review

Edentulous (0 remaining teeth) vs 20-32 remaining teeth

Atherosclerotic cardiovascular disease (ACVD)-related events (morbidity and mortality) · Adults (any age) with a known number of remaining teeth, followed prospectively in cohort studies

In prospective cohorts, edentulous adults (0 teeth) had a higher cumulative incidence of ACVD-related events than adults with 20-32 teeth (RR 2.65, 95% CI 1.77 to 3.98; 2 cohort studies, I2=60%); GRADE per-analysis ratings reported in Supplementary File 7 (not available in provided sources).

1 finding from 1 review

Nickel-titanium archwire vs Multistranded stainless steel archwire

Amount of crowding (change in mandibular crowding) at 8 weeks · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

It is very uncertain whether nickel-titanium archwire changes amount of crowding (change in mandibular crowding) at 8 weeks compared with multistranded stainless steel archwire (very low certainty).

1 finding from 1 review

Fixed bonded acrylic splint expander vs no treatment

Canine expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…

Fixed bonded acrylic splint expander showed no clear difference in canine expansion (maxillary intercanine width) compared with no treatment; GRADE not reported.

1 finding from 1 review