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Evidence found and GRADE certainty

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

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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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Bone-borne expansion vs Fixed tooth-borne expansion (Hyrax)

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

Bone-borne expansion showed no clear difference in molar expansion (inter-molar distance) compared with fixed tooth-borne expansion (Hyrax) (low certainty).

1 finding from 1 review

Fluorescence-based devices vs Dental imaging (analog or digital radiographs)

Difference in specificity · Asymptomatic children or adults suspected of enamel caries (clinical studies); extracted teeth (in vitro studies)

Fluorescence and imaging had similar specificity in the fully within-person analysis.

1 finding from 1 review

Electrical conductance devices (electronic caries monitor (ECM) and/or CarieScan Pro), used as an adjunct to clinical oral examination vs Reference standard: histology or enhanced visual examination (with or without radiographs)

Outcome not reported · Children/adolescents/adults or extracted teeth; target condition = non-cavitated enamel caries on PROXIMAL (approximal) tooth surfaces.

The review found no eligible studies for this question.

1 finding from 1 review
  • Electrical conductance for the detection of dental caries 2021 · Cochrane All outcomes
    Up to 3 months between index test and reference standard (in vivo studies)
    No eligible studies. All included studies assessed occlusal surfaces only ('All studies assessed the use of the electrical conductance devices on occlusal surfaces.'); proximal surfaces were a planned surface subgroup…
    0 studies
    No studies found

Coating material (bonding material or sealant) WITH fluoride release vs Coating material WITHOUT fluoride release

White spot lesions assessed by laser fluorescence (DIAGNOdent) · Patients of any age (11-40 years) receiving comprehensive/fixed orthodontic treatment with fixed appliances

White spot lesions were also measured by laser fluorescence in 3 fluoride-vs-non-fluoride studies, but no meta-analysis was possible due to incompatible reporting.

1 finding from 1 review

Frequent carbohydrate / sugary food intake vs Infrequent carbohydrate intake

Dental caries · Individuals in East Africa assessed for dental caries

Frequent carbohydrate intake was associated with significantly higher odds of dental caries (OR 1.575, 95% CI 1.13 to 3.051); certainty not graded.

1 finding from 1 review

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

Number of teeth · Adults (general and hospital populations assessed in case-control studies)

No statistically significant difference in number of teeth between SSc patients and controls (SMD -0.95, CI includes 0); certainty ungraded.

1 finding from 1 review

Optical coherence tomography (OCT) vs Reference standard (histology, excavation, radiographs/microCT, or tooth separation)

Specificity for detection and diagnosis of early (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

Surgery +/- radiotherapy + (adjuvant) chemotherapy vs Surgery +/- radiotherapy alone (observation or adjuvant radiotherapy only)

Overall survival, adjuvant concomitant chemoradiotherapy vs post-surgery radiotherapy alone · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Surgery +/- radiotherapy + (adjuvant) chemotherapy probably leads to lower overall survival, adjuvant concurrent chemoradiation vs adjuvant… compared with surgery +/- radiotherapy alone (observation or adjuvant radiotherapy… (moderate certainty).

1 finding from 1 review

Fixed bonded Hyrax appliance followed by U-bow activator therapy vs no treatment

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

Fixed bonded Hyrax appliance followed by U-bow activator therapy showed no clear difference in molar expansion compared with no treatment; GRADE not reported.

1 finding from 1 review
  • Orthodontic treatment for posterior crossbites 2021 · Cochrane All outcomes
    12 months after start of treatment
    U-bow activator 5.1 mm vs untreated 0.8 mm; P<0.001 (no SD reported); significant in favour of treatment
    1 study · 66 participants
    GRADE not reported

COE with blood/salivary (biomarker) analysis vs COE with light-based detection (e.g. ViziLite Plus, Microlux/DL, VELscope, Identafi 3000)

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

Semi-rapid maxillary expansion vs Rapid maxillary expansion

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

Semi-rapid maxillary expansion showed no clear difference in canine expansion compared with rapid maxillary expansion; GRADE not reported.

1 finding from 1 review

Radiographic imaging methods (any: analogue radiographs, digital radiographs, or CBCT) vs Reference standard (histology, excavation, or enhanced visual examination)

Diagnostic accuracy in previously restored teeth (secondary caries) · Asymptomatic children, adolescents, or adults presenting for clinical examination (in vivo studies), or extracted teeth of children or…

The review found no eligible studies for this question.

1 finding from 1 review
  • Imaging modalities to inform the detection and diagnosis of early caries 2021 · Cochrane All outcomes
    Up to 3 months between index test and reference standard (in vivo studies) · Restorations (secondary caries)
    Pre-specified heterogeneity investigation of teeth with previously applied restorations (secondary caries): no study intentionally included restored teeth in its sample. Studies evaluating secondary caries were…
    0 studies
    No studies found

Mineral trioxide aggregate (MTA) vs Root repair material (RRM)

Success rate at 1 year · Patients needing retrograde filling in root canal therapy (orthograde root canal filling or retreatment not possible; periapical surgery…

It is very uncertain whether mineral trioxide aggregate (MTA) changes success rate at 1 year compared with root repair material (RRM) (very low certainty).

1 finding from 1 review

Autism spectrum disorder vs Healthy school-aged children (for some measures)

Oral health status and oral-care challenges · Children with autism spectrum disorder in Dubai

Two studies found high caries (77%) and gingivitis and considerable oral-care challenges among children with autism spectrum disorder, with low restorative indices (narrative synthesis; not GRADE-rated).

1 finding from 1 review

Induction chemotherapy plus locoregional treatment (radiotherapy and/or surgery) vs Locoregional treatment (radiotherapy and/or surgery) alone

Overall survival, induction cisplatin + 5-fluorouracil prior to concurrent chemoradiation (cisplatin) vs concurrent chemoradiation (cisplatin) · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Induction chemotherapy plus locoregional treatment (radiotherapy… showed no clear difference in overall survival, induction cisplatin + 5-fluorouracil prior to… compared with locoregional treatment (radiotherapy and/or surgery) alone (low certainty).

1 finding from 1 review