Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,534 questions · 5,247 findings · 456 reviews

No studies found 1,142 · 21.8%GRADE not reported 1,503 · 28.6%Very low 1,040 · 19.8%Low 869 · 16.6%Moderate 554 · 10.6%High 139 · 2.6%

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Light-based detection and/or oral spectroscopy (e.g. ViziLite, VELscope, Microlux DL, Identafi 3000) vs Surgical or punch biopsy with histological assessment

Sensitivity · Adults (aged 16 years or over) presenting to primary or secondary care with clinically evident suspicious or innocuous oral lesions
1 finding from 1 review

Schwarz appliance vs No active treatment (control)

Lower incisors to mandible (position, mm) at 9 months · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

Schwarz appliance led to higher lower incisors to mandible (position, mm) at 9 months compared with no active treatment (control); GRADE not reported.

1 finding from 1 review

Copper nickel-titanium archwire vs Nickel-titanium archwire

Time to alignment · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

Copper nickel-titanium archwire showed no clear difference in time to alignment (days) compared with nickel-titanium archwire; GRADE not reported.

1 finding from 1 review

Active self-ligating brackets vs Passive self-ligating brackets

Amount of crowding (upper anterior crowding) · 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
    baseline
    Only baseline upper anterior crowding reported (Pandis 2010a, n=70); evidence of baseline imbalance between groups (P=0.04); no post-treatment between-group crowding estimate reported.
    1 study
    GRADE not reported

ARP with alloplast vs ARP with xenograft

Implant failure rate · Adults aged 18 years or older, in good general health (including well-controlled systemic disease), requiring extraction of one or more…

It is very uncertain whether ARP with alloplast changes implant failure rate compared with ARP with xenograft (very low certainty).

1 finding from 1 review

Removable tooth-borne expansion (expansion plate) vs observation

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

Removable tooth-borne expansion (expansion plate) probably leads to higher canine expansion (inter-canine distance) compared with observation (no treatment) (moderate certainty).

1 finding from 1 review

Fixed tooth-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…

Fixed tooth-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

ARP with allograft (bone graft) vs ARP with xenograft

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

Lower lingual arch vs No active treatment (control)

Lower molars to mandible (relationship of lower back teeth to the mandible) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth

Lower lingual arch led to lower lower molars to mandible at 1 year compared with no active treatment (control); GRADE not reported.

1 finding from 1 review

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