What do systematic reviews say?

Open surgical exposure vs Closed surgical exposure

Open surgical exposure showed no clear difference in gum health: radiographic crestal bone level compared with closed surgical exposure; GRADE not reported.

• Open versus closed surgical exposure of canine teeth that are displaced in the roof of the mouth 2017 · Cochrane All outcomes

  3 months post-debond
  MD 3.21 [-0.33, 6.75]
  1 study · 43 participants
  GRADE not reported

Open surgical exposure vs Closed surgical exposure

• Open versus closed surgical exposure of canine teeth that are displaced in the roof of the mouth 2017 · Cochrane All outcomes

  End of treatment
  SoF (Aesthetics, reported in various manners at different time points): 'This outcome was measured in a variety of ways in the studies that cannot be pooled'; quality very low (⊕⊝⊝⊝). Results: Parkin 2012 -…
  2 studies
  Very low

Open surgical exposure vs Closed surgical exposure

Open surgical exposure showed no clear difference in gum health: clinical attachment level (CAL) compared with closed surgical exposure (low certainty).

• Open versus closed surgical exposure of canine teeth that are displaced in the roof of the mouth 2017 · Cochrane All outcomes

  3 months post-debond
  MD -0.10 [-0.45, 0.25]
  1 study · 62 participants
  Low

Total thyroidectomy vs subtotal thyroidectomy

Total thyroidectomy showed no clear difference in permanent recurrent laryngeal nerve palsy [patient reported,… compared with bilateral subtotal thyroidectomy (low certainty).

• Thyroid surgery for Graves’ disease and Graves’ ophthalmopathy 2015 · Cochrane Headline outcomes only
  OR 1 [0.14, 7.15]
  2 studies · 300 participants
  Low

Total thyroidectomy vs subtotal thyroidectomy

Total thyroidectomy showed no clear difference in permanent hypocalcaemia/hypoparathyroidism [measured by serum… compared with bilateral subtotal thyroidectomy (low certainty).

• Thyroid surgery for Graves’ disease and Graves’ ophthalmopathy 2015 · Cochrane Headline outcomes only
  OR 2.04 [0.53, 7.85]
  2 studies · 300 participants
  Low

Total thyroidectomy vs subtotal thyroidectomy

• Thyroid surgery for Graves’ disease and Graves’ ophthalmopathy 2015 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 300 participants
  GRADE not reported

Total thyroidectomy vs subtotal thyroidectomy

The review found no eligible studies for this question.

• Thyroid surgery for Graves’ disease and Graves’ ophthalmopathy 2015 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Total thyroidectomy vs subtotal thyroidectomy

The review found no eligible studies for this question.

• Thyroid surgery for Graves’ disease and Graves’ ophthalmopathy 2015 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Total thyroidectomy vs subtotal thyroidectomy

Total thyroidectomy probably leads to lower R ate of recurrent hyperthyroidism [measured by thyroid function… compared with bilateral subtotal thyroidectomy (moderate certainty).

• Thyroid surgery for Graves’ disease and Graves’ ophthalmopathy 2015 · Cochrane Headline outcomes only
  OR 0.13 [0.04, 0.44]
  2 studies · 300 participants
  Moderate

Total thyroidectomy vs subtotal thyroidectomy

Total thyroidectomy showed no clear difference in regression of Graves' ophthalmopathy [ophthalmology assessment] compared with bilateral subtotal thyroidectomy (low certainty).

• Thyroid surgery for Graves’ disease and Graves’ ophthalmopathy 2015 · Cochrane Headline outcomes only
  OR 1.19 [0.64, 2.21]
  2 studies · 260 participants
  Low

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 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 dental extraction vs Post-radiotherapy dental extraction

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 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