Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,317 questions · 75,239 findings · 5,342 reviews

No studies found 15,213 · 20.2%GRADE not reported 10,323 · 13.7%Very low 17,528 · 23.3%Low 17,951 · 23.9%Moderate 11,190 · 14.9%High 3,034 · 4%

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Disability (developmental, intellectual, or sensory) vs Persons without disabilities

Dental caries prevalence and severity · Persons with disabilities (children and adults with autism, Down syndrome, cerebral palsy, hearing impairment, or multiple disabilities)…

Dental caries prevalence and severity are high among persons with disabilities in Saudi Arabia (60% to over 80%), and the one comparative autism study reported significantly higher caries than controls; synthesized narratively (ungraded).

1 finding from 1 review

Opal Seal fluoride-releasing primer vs Conventional Transbond XT primer

Bracket (bond) failure · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)

Opal Seal showed no difference in bracket failure, with certainty not graded.

1 finding from 1 review

Silver diamine fluoride (SDF) vs Fluoride varnish

Primary caries prevention · Children and adults (with or without carious lesions)

It is very uncertain whether silver diamine fluoride (SDF) changes primary caries prevention compared with fluoride varnish (very low certainty).

3 findings from 1 review

Prenatal vitamin D deficiency (maternal 25(OH)D measured at gestational weeks 24 to 38) vs Adequate prenatal vitamin D (sufficient maternal 25(OH)D)

Dental caries in children · Infants and children (aged about 2 to 8 years) whose mothers' vitamin D status was assessed during pregnancy

For prenatal vitamin D measured across gestational weeks 24-38, the OR of dental caries was 1.30 (no CI reported); ungraded.

1 finding from 1 review

Reverse Twin Block with lip pads and rapid maxillary expander (RME) vs no intervention

Wits appraisal · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Reverse Twin Block with lip pads and rapid maxillary expander (RME) led to higher wits appraisal compared with untreated control (no treatment); GRADE not reported.

1 finding from 1 review

Lycopene plus intralesional betamethasone vs placebo

Maximal mouth opening (interincisal distance) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)
1 finding from 1 review
  • Kumar 2007 (3-arm: lycopene vs lycopene+intralesional betamethasone vs placebo): appeared to show increased interincisal distance in the two active groups, but limited withdrawal information/incomplete data meant…
    1 study
    GRADE not reported

Silver diamine fluoride (SDF) vs Nano-silver fluoride (NSF; with or without green tea extract)

Caries arrestment at the individual (patient) level · Children and adults with active dental caries (aged 1-50; mostly preschool/school children with primary dentition)

Pooling two trials, nano-silver fluoride achieved higher individual-level caries arrestment than SDF (OR 0.39 favoring the comparator; ungraded subgroup).

1 finding from 1 review

AA+AG genotypes vs GG genotype

Dental caries · Children (<18 years) with vs without dental caries

FokI(rs2228570) dominant model: AA+AG vs GG was not significantly associated with dental caries (OR 1.07); ungraded.

1 finding from 1 review

Levamisole vs Antioxidant (Antoxid)

Burning sensation (VAS 0-100) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)

It is very uncertain whether levamisole changes burning sensation (VAS 0-100) compared with antioxidant (Antoxid) (very low certainty).

2 findings from 1 review

Extraction of the mandibular permanent first molar vs Not applicable (single-group prevalence)

Rotation of the mandibular second premolar · Children and adolescents after extraction of a mandibular permanent first molar (before eruption of the second molar)

After mandibular first molar extraction, the second premolar was rotated in about 60% of cases (2 studies; very imprecise; not GRADE-rated).

1 finding from 1 review

Pentoxifylline vs Placebo or no active treatment

Difficulty in swallowing (participant-reported proxy) · People of any age with a confirmed diagnosis, by clinical examination and biopsy, of oral submucous fibrosis (OSF)

Pentoxifylline led to lower difficulty in swallowing (participant-reported proxy) compared with placebo or no active treatment; GRADE not reported.

1 finding from 1 review

Silver diamine fluoride (SDF) vs placebo or no treatment

Primary caries prevention · Children and adults (with or without carious lesions)

It is very uncertain whether silver diamine fluoride (SDF) changes primary caries prevention compared with placebo or no treatment (very low certainty).

3 findings from 1 review

Silver diamine fluoride (SDF) vs Fluoride varnish

Secondary prevention of caries · Children and adults (with or without carious lesions)

The review found no eligible studies for this question.

3 findings from 1 review

Package of oral health education/promotion including oral hygiene advice for pregnant women, mothers, infants and young children, plus dietary and feeding practice advice for infants and young children vs usual care

Adverse events for mother or child · For interventions, pregnant women, mothers or other caregivers of infants in the first year of life; for outcomes, children up to 6 years…
1 finding from 1 review

Orthodontic adhesive/composite containing nano-calcium fluoride (n-CaF2), alone or with DMAHDM vs Conventional/control orthodontic adhesive (e.g., Transbond XT) or negative control

Enamel remineralization extent · Human enamel specimens around orthodontic brackets (in vitro)

In vitro, a nano-CaF2-containing orthodontic cement showed significant enamel remineralization versus control in a single study (ungraded).

1 finding from 1 review