What do systematic reviews say?

Extraction of the primary maxillary canine vs no intervention

• Extraction of primary (baby) teeth for unerupted palatally displaced permanent canine teeth in children 2012 · Cochrane All outcomes

  At least 6 months follow-up after the intervention
  Change in the sagittal position of the upper first molars (Baccetti 2008 only): average sagittal displacement was 2.65 mm in the extraction-only group and 2.32 mm in the untreated control group (0.24 mm in the…
  1 study
  GRADE not reported

Extraction of the primary maxillary canine vs no intervention

• Extraction of primary (baby) teeth for unerupted palatally displaced permanent canine teeth in children 2012 · Cochrane All outcomes

  At least 6 months follow-up after the intervention
  Narrative summary (data not poolable, not GRADE-rated). Leonardi 2004: successful eruption of the permanent canine 50% in the extraction-only group, which was not significantly greater than the success rate in…
  2 studies · 70 participants
  GRADE not reported

Pre-radiotherapy extraction of healthy molar teeth vs Conservative treatment (leaving the teeth in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

The review found no eligible studies for this question.

• Dental extractions prior to radiotherapy to the jaws for reducing post‐radiotherapy dental complications 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Pre-radiotherapy extraction of healthy molar teeth vs Conservative treatment (leaving the teeth in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

The review found no eligible studies for this question.

• Dental extractions prior to radiotherapy to the jaws for reducing post‐radiotherapy dental complications 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Pre-radiotherapy extraction of healthy molar teeth vs Conservative treatment (leaving the teeth in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

The review found no eligible studies for this question.

• Dental extractions prior to radiotherapy to the jaws for reducing post‐radiotherapy dental complications 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Pre-radiotherapy extraction of healthy molar teeth vs Conservative treatment (leaving the teeth in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

The review found no eligible studies for this question.

• Dental extractions prior to radiotherapy to the jaws for reducing post‐radiotherapy dental complications 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Pre-radiotherapy extraction of healthy molar teeth vs Conservative treatment (leaving the teeth in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

The review found no eligible studies for this question.

• Dental extractions prior to radiotherapy to the jaws for reducing post‐radiotherapy dental complications 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Pre-radiotherapy extraction of diseased molar teeth vs Conservative treatment (restoration of the teeth and leaving them in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

The review found no eligible studies for this question.

• Dental extractions prior to radiotherapy to the jaws for reducing post‐radiotherapy dental complications 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Pre-radiotherapy extraction of diseased molar teeth vs Conservative treatment (restoration of the teeth and leaving them in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

The review found no eligible studies for this question.

• Dental extractions prior to radiotherapy to the jaws for reducing post‐radiotherapy dental complications 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Pre-radiotherapy extraction of diseased molar teeth vs Conservative treatment (restoration of the teeth and leaving them in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

The review found no eligible studies for this question.

• Dental extractions prior to radiotherapy to the jaws for reducing post‐radiotherapy dental complications 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Pre-radiotherapy extraction of diseased molar teeth vs Conservative treatment (restoration of the teeth and leaving them in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

The review found no eligible studies for this question.

• Dental extractions prior to radiotherapy to the jaws for reducing post‐radiotherapy dental complications 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Pre-radiotherapy extraction of diseased molar teeth vs Conservative treatment (restoration of the teeth and leaving them in place during radiotherapy, with oral health education and disease prevention: oral hygiene, fluoride, diet advice)

The review found no eligible studies for this question.

• Dental extractions prior to radiotherapy to the jaws for reducing post‐radiotherapy dental complications 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Early extraction of a compromised first permanent molar vs Teeth in the same arch/patient with the first permanent molar present

One study found fewer decayed or filled proximal surfaces but more decayed or filled occlusal surfaces in arches with an extracted first permanent molar; ungraded.

• Consequences of early extraction of compromised first permanent molar: a systematic review. 2018 All outcomes

  School-based survey (South Glamorgan, UK) · Proximal surfaces (extraction vs FPM present; fewer decayed/filled with extraction)
  OR 0.48 [0.33, 0.69]
  1 study
  GRADE not reported

Extraction of the primary maxillary canine plus cervical pull headgear vs no intervention

• Extraction of primary (baby) teeth for unerupted palatally displaced permanent canine teeth in children 2012 · Cochrane All outcomes

  At least 6 months follow-up after the intervention
  Narrative (not pooled, not GRADE-rated). Leonardi 2004: successful eruption 80% with extraction plus cervical pull headgear, significantly higher than the untreated control group (Chi2 14.9; P<0.01). Baccetti 2008: the…
  2 studies · 81 participants
  GRADE not reported

Surgical removal (extraction) of asymptomatic disease-free impacted wisdom teeth vs Retention (conservative management) of asymptomatic disease-free impacted wisdom teeth

The review found no eligible studies for this question.

• Surgical removal versus retention for the management of asymptomatic disease‐free impacted wisdom teeth 2020 · Cochrane All outcomes
  Undesirable outcomes associated with removal: Not measured. No included studies measured outcomes or adverse events associated with removal (alveolar osteitis/postoperative infection, nerve injury, damage to adjacent…
  0 studies
  No studies found

Surgical removal (extraction) of asymptomatic disease-free impacted wisdom teeth vs Retention (conservative management) of asymptomatic disease-free impacted wisdom teeth

The review found no eligible studies for this question.

• Surgical removal versus retention for the management of asymptomatic disease‐free impacted wisdom teeth 2020 · Cochrane All outcomes
  No included studies reported pericoronitis, root resorption, cyst formation, tumour formation or inflammation/infection.
  0 studies
  No studies found

Surgical removal (extraction) of asymptomatic disease-free impacted wisdom teeth vs Retention (conservative management) of asymptomatic disease-free impacted wisdom teeth

Surgical removal (extraction) of asymptomatic disease-free impacted… may leads to lower arch length (dimensional changes in the dental arch) compared with retention (conservative management) of asymptomatic disease-free… (low certainty).

• Surgical removal versus retention for the management of asymptomatic disease‐free impacted wisdom teeth 2020 · Cochrane All outcomes

  5 years (66 months)
  MD -1.03 [-1.50, -0.56]
  1 study · 77 participants
  Low

Surgical removal (extraction) of asymptomatic disease-free impacted wisdom teeth vs Retention (conservative management) of asymptomatic disease-free impacted wisdom teeth

Surgical removal (extraction) of asymptomatic disease-free impacted… showed no clear difference in little's irregularity index (dimensional changes in the dental arch) compared with retention (conservative management) of asymptomatic disease-free… (low certainty).

• Surgical removal versus retention for the management of asymptomatic disease‐free impacted wisdom teeth 2020 · Cochrane All outcomes

  5 years (66 months)
  MD -0.3 [-1.3, 0.7]
  1 study · 77 participants
  Low

Surgical removal (extraction) of asymptomatic disease-free impacted wisdom teeth vs Retention (conservative management) of asymptomatic disease-free impacted wisdom teeth

The review found no eligible studies for this question.

• Surgical removal versus retention for the management of asymptomatic disease‐free impacted wisdom teeth 2020 · Cochrane All outcomes
  Costs: Not measured. The included studies did not measure days off work/study or direct costs associated with retention or removal of wisdom teeth and treatment of associated symptoms or complications.
  0 studies
  No studies found

Surgical removal (extraction) of asymptomatic disease-free impacted wisdom teeth vs Retention (conservative management) of asymptomatic disease-free impacted wisdom teeth

The review found no eligible studies for this question.

• Surgical removal versus retention for the management of asymptomatic disease‐free impacted wisdom teeth 2020 · Cochrane All outcomes
  Health-related quality of life: Our primary outcome was not assessed in the included studies.
  0 studies
  No studies found