What do systematic reviews say?

Oral vs intramuscular vitamin B12

The review found no eligible studies for this question.

• Oral vitamin B₁₂ versus intramuscular vitamin B₁₂ for vitamin B₁₂ deficiency 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Educational intervention with information and practical components (theoretical oral health education plus practical skills training) for nursing staff and/or residents vs (Optimised) usual care

The review found no eligible studies for this question.

• Oral health educational interventions for nursing home staff and residents 2016 · Cochrane All outcomes
  SoF row 'Oral health-related quality of life': Illustrative risks -, relative effect -, participants/studies -, quality -; Comment: Outcome not reported. Not measured in any included study.
  0 studies
  No studies found

Summary of findings for resveratrol plus oral anti‐diabetic drugs vs placebo plus oral anti‐diabetic drugs

The review found no eligible studies for this question.

• Resveratrol for adults with type 2 diabetes mellitus 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Oral factor Xa inhibitors vs conventional anticoagulation

The review found no eligible studies for this question.

• Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the treatment of… 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Oral direct thrombin inhibitors (DTIs) vs conventional anticoagulation

The review found no eligible studies for this question.

• Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the treatment of… 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ Oral small molecule inhibitors (ruxolitinib) vs oral small molecule inhibitors (tofacitinib)

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ Oral classical immunosuppressants (betamethasone) vs oral classical immunosuppressants (azathioprine, methotrexate, prednisolone)

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Clinical examination with 24-month recall vs Clinical examination with 12-month recall

The review found no eligible studies for this question.

• Recall intervals for oral health in primary care patients 2020 · Cochrane All outcomes

  2 years
  Summary of findings 1 lists 'Oral-health-related quality of life: Not reported' for the 24-month versus 12-month comparison (Wang 1992 did not measure it).
  0 studies
  No studies found

Direct oral anticoagulant secondary prophylaxis vs vitamin K antagonist secondary prophylaxis

• Anticoagulation for the long‐term treatment of venous thromboembolism in people with cancer 2018 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 8485 participants
  Moderate

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

Clinical examination with 24-month recall showed no clear difference in oral-health-related quality of life (OHIP-14) compared with clinical examination with 6-month recall (high certainty).

• Recall intervals for oral health in primary care patients 2020 · Cochrane All outcomes

  4 years
  MD -0.24 [-1.55, 1.07]
  1 study · 305 participants
  High

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

Clinical examination with risk-based recall showed no clear difference in oral-health-related quality of life (OHIP-14) compared with clinical examination with 24-month recall (high certainty).

• Recall intervals for oral health in primary care patients 2020 · Cochrane All outcomes

  4 years
  MD -0.37 [-1.69, 0.95]
  1 study · 298 participants
  High

Clinical examination with risk-based recall vs Clinical examination with 6-month recall

Clinical examination with risk-based recall showed no clear difference in oral-health-related quality of life (OHIP-14) compared with clinical examination with 6-month recall (high certainty).

• Recall intervals for oral health in primary care patients 2020 · Cochrane All outcomes

  4 years
  MD -0.35 [-1.02, 0.32]
  1 study · 1551 participants
  High

Routine scale and polish provided by a dentist vs Routine scale and polish provided by a dental care professional (dental therapist or hygienist)

The review found no eligible studies for this question.

• Routine scale and polish for periodontal health in adults 2018 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

14% HP strip vs placebo

• Home‐based chemically‐induced whitening (bleaching) of teeth in adults 2018 · Cochrane All outcomes
  No significant impact of tooth whitening on OHRQoL (Bruhn 2012; Wong 2004)
  2 studies
  GRADE not reported

Autologous platelet concentrates (APC) + guided tissue regeneration (GTR) vs GTR (guided tissue regeneration) alone

The review found no eligible studies for this question.

• Autologous platelet concentrates for treating periodontal infrabony defects 2018 · Cochrane All outcomes
  No quantitative analysis regarding patients' quality of life was possible (no data).
  0 studies
  No studies found

Autologous platelet concentrates (APC) + enamel matrix derivative (EMD) vs EMD (enamel matrix derivative) alone

The review found no eligible studies for this question.

• Autologous platelet concentrates for treating periodontal infrabony defects 2018 · Cochrane All outcomes
  No quantitative analysis regarding patients' quality of life was possible (no data).
  0 studies
  No studies found

Autologous platelet concentrates (APC) + open flap debridement (OFD) + bone graft (BG) vs OFD + BG (open flap debridement + bone graft)

The review found no eligible studies for this question.

• Autologous platelet concentrates for treating periodontal infrabony defects 2018 · Cochrane All outcomes
  No quantitative analysis regarding patients' quality of life was possible (no data).
  0 studies
  No studies found

Autologous platelet concentrates (APC) + open flap debridement (OFD) vs Open flap debridement (access flap surgery)

The review found no eligible studies for this question.

• Autologous platelet concentrates for treating periodontal infrabony defects 2018 · Cochrane All outcomes
  No quantitative analysis regarding patients' quality of life was possible (no data).
  0 studies
  No studies found

Summary of findings table ‐ Oral classical immunosuppressants (prednisolone or cyclosporine) vs placebo

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 36 participants
  Very low

Summary of findings table ‐ Oral small molecule inhibitors (apremilast or baricitinib) vs placebo

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found