What do systematic reviews say?

ARP with allograft (bone graft) vs ARP with xenograft

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: alveolar ridge preservation techniques for dental implant site development 2021 · Cochrane All outcomes

  6 months
  Outcome not reported
  0 studies
  No studies found

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

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: alveolar ridge preservation techniques for dental implant site development 2021 · Cochrane All outcomes

  6 months
  Outcome not reported
  0 studies
  No studies found

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

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: alveolar ridge preservation techniques for dental implant site development 2021 · Cochrane All outcomes

  6 months
  Outcome not reported
  0 studies
  No studies found

Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome vs LASIK with a femtosecond laser

• Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome compared to LASIK with a femtosecond… 2020 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 42 participants
  Low

Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome vs LASIK with a femtosecond laser

Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical… showed no clear difference in proportion of eyes within ± 0.5 diopters of target refraction, 12… compared with LASIK with a femtosecond laser (low certainty).

• Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome compared to LASIK with a femtosecond… 2020 · Cochrane Headline outcomes only
  RR 0.97 [0.85, 1.11]
  1 study · 79 participants
  Low

Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome vs LASIK with a femtosecond laser

• Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome compared to LASIK with a femtosecond… 2020 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 168 participants
  Low

Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome vs LASIK with a femtosecond laser

It is very uncertain whether laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical… changes corneal haze, any time point compared with LASIK with a femtosecond laser (very low certainty).

• Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome compared to LASIK with a femtosecond… 2020 · Cochrane Headline outcomes only
  RR 0.33 [0.01, 7.96]
  1 study · 86 participants
  Very low

Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome vs LASIK with a femtosecond laser

Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical… may leads to higher dry eye, any time point compared with LASIK with a femtosecond laser (low certainty).

• Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome compared to LASIK with a femtosecond… 2020 · Cochrane Headline outcomes only
  RR 5.74 [2.92, 11.29]
  1 study · 183 participants
  Low

Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome vs LASIK with a femtosecond laser

Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical… may leads to lower diffuse lamellar keratitis, any time point compared with LASIK with a femtosecond laser (low certainty).

• Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome compared to LASIK with a femtosecond… 2020 · Cochrane Headline outcomes only
  RR 0.27 [0.1, 0.78]
  3 studies · 134 participants
  Low

Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome vs LASIK with a femtosecond laser

It is very uncertain whether laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical… changes epithelial ingrowth, any time point compared with LASIK with a femtosecond laser (very low certainty).

• Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome compared to LASIK with a femtosecond… 2020 · Cochrane Headline outcomes only
  RR 1.04 [0.11, 9.42]
  2 studies · 102 participants
  Very low

0.1% chlorine dioxide mouthwash vs Placebo mouthwash

0.1% chlorine dioxide mouthwash may leads to lower dentist-reported organoleptic test (OLT) score (scale 0 to 5) compared with placebo mouthwash (low certainty).

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 3 weeks
  MD -0.61 [-0.73, -0.49]
  1 study · 47 participants
  Low

Mechanical tongue cleaning (tongue scraper) vs No tongue cleaning

The review found no eligible studies for this question.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 2 weeks
  Adverse events: listed in the Summary of findings table but no data reported. No data were reported for adverse events.
  0 studies
  No studies found

Lactobacillus salivarius WB21 tablets vs placebo (3 tablets/4 times a day

• Interventions for managing halitosis 2019 · Cochrane All outcomes
  Suzuki 2014 (cross-over RCT) compared Lactobacillus salivarius WB21 tablets versus placebo tablets (OLT and VSC by gas chromatography). The trial did not give usable data and we could not extract data from the graph.
  1 study
  GRADE not reported

0.6% eucalyptus chewing gum vs 0.4% eucalyptus chewing gum

It is very uncertain whether 0.6% eucalyptus chewing gum changes dentist-reported organoleptic test (OLT) score (scale 0 to 5) compared with 0.4% eucalyptus chewing gum (very low certainty).

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 4 weeks
  MD -0.1 [-0.37, 0.17]
  1 study · 64 participants
  Very low

Mechanical tongue cleaning (tongue scraper) vs No tongue cleaning

The review found no eligible studies for this question.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 2 weeks
  Patient-reported OLT score assessed with patient's perception: listed in the Summary of findings table but no data reported. No data were reported for patient-reported OLT score.
  0 studies
  No studies found

Green tea mouthwash vs Placebo mouthwash

Green tea mouthwash showed no clear difference in volatile sulphur compounds (VSC), halimeter compared with placebo mouthwash; GRADE not reported.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  28 days
  MD -57.39 [-184.63, 69.85]
  1 study · 60 participants
  GRADE not reported

Triclosan/copolymer-containing fluoride toothpaste vs Sodium fluoride (control) toothpaste

The review found no eligible studies for this question.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 1 week
  Patient-reported OLT score: listed in the Summary of findings table but no data reported. No data were reported for patient-reported OLT score.
  0 studies
  No studies found

Hinokitiol gel vs Placebo gel

The review found no eligible studies for this question.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 4 weeks
  Adverse events: listed in the Summary of findings table but no data reported. No data were reported for adverse events.
  0 studies
  No studies found

Toothbrushing + Turkish gall oral rinse vs Toothbrushing alone

Toothbrushing + Turkish gall oral rinse showed no clear difference in volatile sulphur compounds (VSC), halimeter compared with toothbrushing; GRADE not reported.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  2 weeks
  MD -211.47 [-503.58, 80.64]
  1 study · 66 participants
  GRADE not reported

0.6% eucalyptus chewing gum vs Placebo chewing gum

0.6% eucalyptus chewing gum showed no clear difference in volatile sulphur compounds (VSC) compared with placebo chewing gum; GRADE not reported.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  4 weeks
  MD 0.0 [-0.21, 0.21]
  1 study · 65 participants
  GRADE not reported