Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,954 questions · 2,335 findings · 149 reviews · All outcomes

No studies found 436 · 18.7%GRADE not reported 1,370 · 58.7%Very low 254 · 10.9%Low 173 · 7.4%Moderate 80 · 3.4%High 22 · 0.9%

Fixed tooth-borne expansion (quad-helix) vs Removable tooth-borne expansion (expansion plate)

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

Fixed tooth-borne expansion (quad-helix) probably leads to higher crossbite correction compared with removable tooth-borne expansion (expansion plate) (moderate certainty).

1 finding from 1 review

ARP with demineralised bone matrix, single particle size vs ARP with demineralised bone matrix, multiple particle size

Need for additional augmentation prior to implant placement · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

The review found no eligible studies for this question.

1 finding from 1 review

Multistranded stainless steel archwire vs 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 multistranded stainless steel archwire changes amount of crowding (change in mandibular crowding) at 8 weeks compared with stainless steel archwire (very low certainty).

1 finding from 1 review

Expansion plate with conventional expansion screw vs Expansion plate with spring-loaded expansion screw

Molar and canine 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

ARP with allograft plus synthetic cell-binding peptide P-15 vs ARP with allograft without P-15

Aesthetic outcomes of future prosthodontic rehabilitation · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

The review found no eligible studies for this question.

1 finding from 1 review

Self-ligating brackets vs Conventional brackets

Harms (discomfort, periodontal/gingival health, root resorption) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
1 finding from 1 review
  • Orthodontic treatment for crowded teeth in children 2021 · Cochrane All outcomes
    up to 9 months
    No evidence of differences between self-ligating and conventional brackets for discomfort (Atik 2014, Miles 2010), plaque/gingival index and probing depth (Atik 2014), or maxillary incisor root resorption (Aras 2018).…
    3 studies
    GRADE not reported

Clinical examination with 24-month recall vs Clinical examination with 6-month recall

Patient satisfaction with actual care received (1-7 scale) · Dentate adults (aged 18 years and older) receiving dental check-ups in UK general dental practices (regular attenders)

Clinical examination with 24-month recall showed no clear difference in patient satisfaction with actual care received (1-7 scale) compared with clinical examination with 6-month recall; GRADE not reported.

1 finding from 1 review

Resin-based fissure sealant vs Fluoride varnish

Safety of sealants and fluoride varnishes (adverse events) · Children and adolescents (general population, aged under 20 years)
1 finding from 1 review

Resin-based fissure sealant vs Fluoride varnish

Time taken to apply pit and fissure sealant or fluoride varnish · Children and adolescents (general population, aged under 20 years)

The review found no eligible studies for this question.

1 finding from 1 review

Clinical examination with risk-based recall vs Clinical examination with 24-month recall

Oral health knowledge (1-9 scale) · Dentate adults (aged 18 years and older) receiving dental check-ups in UK general dental practices (regular attenders)

Clinical examination with risk-based recall showed no clear difference in oral health knowledge (1-9 scale) compared with clinical examination with 24-month recall; GRADE not reported.

1 finding from 1 review

Resin-modified glass ionomer fissure sealant vs Fluoride varnish

Progression of dentinal carious lesions into enamel or dentine · Children and adolescents (general population, aged under 20 years)

Resin-modified glass ionomer fissure sealant showed no clear difference in progression of dentinal carious lesions into enamel or dentine compared with fluoride varnish; GRADE not reported.

1 finding from 1 review

Low birth weight (<2500 g) vs Normal birth weight (2500 g or more)

Early childhood caries (ECC) · Children aged 6 years or younger (preschool children)

Adjusted analyses also showed no association between low birth weight and early childhood caries (adjusted OR 1.05, 95% CI 0.71 to 1.57); certainty not graded.

3 findings from 1 review

Clinical examination with risk-based recall vs Clinical examination with 24-month recall

Cost (healthcare-system perspective): total cost per patient (GBP) · Dentate adults (aged 18 years and older) receiving dental check-ups in UK general dental practices (regular attenders)

Clinical examination with risk-based recall showed no clear difference in cost (healthcare-system perspective): total cost per patient (GBP) compared with clinical examination with 24-month recall; GRADE not reported.

1 finding from 1 review

Fluoride varnish vs Fissure sealant (resin-based or glass ionomer)

Caries incidence of first permanent molars (FPMs) · Generally healthy children aged 6 to 9 years with at least one fully erupted first permanent molar with deep fissures or early enamel…

After excluding the high-risk-of-bias study (Bravo 1996), fluoride varnish and fissure sealant did not differ in caries incidence of FPMs and heterogeneity fell to 0% (RR 1.05, 95% CI 0.91 to 1.22; 5 RCTs; ungraded).

3 findings from 1 review

Fluoride varnish vs Fissure sealant (resin-based or glass ionomer)

Caries incidence (proportion of enrolled children developing dentin caries, ICDAS 4-6) · Generally healthy children aged 6 to 9 years with at least one fully erupted first permanent molar with deep fissures or early enamel…

Fluoride varnish and fissure sealant did not differ significantly in the proportion of children developing caries at 2 to 3 years (RR 1.12, 95% CI 0.60 to 2.09; 2 RCTs; ungraded).

1 finding from 1 review

Clinical examination with risk-based recall vs Clinical examination with 24-month recall

Oral health attitudes (1-7 scale) · Dentate adults (aged 18 years and older) receiving dental check-ups in UK general dental practices (regular attenders)

Clinical examination with risk-based recall showed no clear difference in oral health attitudes (1-7 scale) compared with clinical examination with 24-month recall; GRADE not reported.

1 finding from 1 review

Clinical examination with risk-based recall vs Clinical examination with 24-month recall

Oral health behaviour (1-9 scale) · Dentate adults (aged 18 years and older) receiving dental check-ups in UK general dental practices (regular attenders)

Clinical examination with risk-based recall showed no clear difference in oral health behaviour (1-9 scale) compared with clinical examination with 24-month recall; GRADE not reported.

1 finding from 1 review