What do systematic reviews say?

SRP plus subgingival laser irradiation vs SRP

SRP plus subgingival laser irradiation showed no clear difference in volatile sulphur compounds (VSC) compared with SRP alone; GRADE not reported.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  4 weeks
  MD -3.3 [-9.38, 2.78]
  1 study · 40 participants
  GRADE not reported

Chlorhexidine + zinc acetate mouthwash vs Placebo mouthwash

The review found no eligible studies for this question.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 3 months
  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

1700 to 2200 ppm F toothpaste vs 250 ppm F toothpaste

1700 to 2200 ppm F toothpaste may leads to lower caries increment, surface index D(M)FS compared with 250 ppm F toothpaste (low certainty).

• Fluoride toothpastes of different concentrations for preventing dental caries 2019 · Cochrane All outcomes

  Closest to 36 months
  SMD -0.17 [-0.3, -0.04]
  Studies not reported
  Low

1000 to 1250 ppm F toothpaste vs Non-fluoride (0 ppm F) placebo toothpaste

1000 to 1250 ppm F toothpaste leads to lower caries increment, tooth index D(M)FT compared with non-fluoride (0 ppm F) placebo toothpaste (high certainty).

• Fluoride toothpastes of different concentrations for preventing dental caries 2019 · Cochrane All outcomes

  Closest to 36 months
  SMD -0.26 [-0.31, -0.21]
  41 studies
  High

2400 to 2800 ppm F toothpaste vs 1000 to 1250 ppm F toothpaste

It is very uncertain whether 2400 to 2800 ppm F toothpaste changes caries increment, tooth index D(M)FT compared with 1000 to 1250 ppm F toothpaste (very low certainty).

• Fluoride toothpastes of different concentrations for preventing dental caries 2019 · Cochrane All outcomes

  Closest to 36 months
  SMD -0.12 [-0.25, 0.01]
  3 studies
  Very low

0.05% chlorhexidine + 0.05% cetylpyridinium chloride + 0.14% zinc lactate mouthrinse vs Placebo mouthwash

It is very uncertain whether halita mouthwash (chlorhexidine 0.05% + cetylpyridinium chloride… changes dentist-reported organoleptic test (OLT) score (scale 0 to 5) compared with placebo mouthwash (very low certainty).

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 2 weeks
  MD -1.0 [-1.65, -0.35]
  1 study · 40 participants
  Very low

1000 or 1100 ppm F toothpaste vs Non-fluoride (0 ppm F) placebo toothpaste

The review found no eligible studies for this question.

• Fluoride toothpastes of different concentrations for preventing dental caries 2019 · Cochrane All outcomes
  Proportion of adults developing new caries: no studies reported this outcome.
  0 studies
  No studies found

Active rinse (zinc acetate + chlorhexidine + sodium fluoride), with or without tongue scraping vs Negative control rinse, with or without tongue scraping

• Interventions for managing halitosis 2019 · Cochrane All outcomes
  Ademovski 2012 (4-arm cross-over trial) compared an active rinse (with/without tongue scraping) versus a negative control rinse (with/without tongue scraping); OLT and VSC. The authors did not report the correlation…
  1 study
  GRADE not reported

Halita mouthrinse vs Perio-plus mouthrinse

Halita mouthrinse showed no clear difference in volatile sulphur compounds (VSC), portable gas chromatograph compared with perio-plus mouthrinse; GRADE not reported.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  8 days
  MD -25.0 [-64.21, 14.21]
  1 study · 36 participants
  GRADE not reported

Lactobacillus brevis CD2 lozenges vs placebo control

• Interventions for managing halitosis 2019 · Cochrane All outcomes
  Marchetti 2015 (2-arm RCT) compared Lactobacillus brevis CD2 lozenges versus placebo lozenges (OLT, VSC and breath print). The study did not report any usable data and hence could not be included in the meta-analysis.
  1 study
  GRADE not reported

Cetylpyridinium chloride mouthwash vs Placebo mouthwash

It is very uncertain whether cetylpyridinium chloride mouthwash changes dentist-reported organoleptic test (OLT) score (scale 0 to 5) compared with placebo mouthwash (very low certainty).

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 2 weeks
  MD -0.5 [-0.83, -0.17]
  1 study · 47 participants
  Very low

Chlorine dioxide + zinc mouthwash vs Placebo mouthwash

Chlorine dioxide + zinc mouthwash led to lower volatile sulphur compounds (VSC), halimeter compared with placebo mouthwash; GRADE not reported.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  2 weeks
  MD -20.53 [-38.52, -2.54]
  1 study · 41 participants
  GRADE not reported

1000 mg champignon extract vs 50 mg champignon extract

It is very uncertain whether 1000 mg champignon extract changes patient-reported visual analogue scale (VAS) score (scale 0 to 100) compared with 50 mg champignon extract (very low certainty).

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 2 weeks
  MD -5.32 [-18.14, 7.5]
  1 study · 40 participants
  Very low

Essential oil mouthwash vs Placebo mouthwash

It is very uncertain whether essential oil mouthwash changes dentist-reported organoleptic test (OLT) score (scale 0 to 5) compared with placebo mouthwash (very low certainty).

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 2 weeks
  MD -0.09 [-0.47, 0.29]
  1 study · 45 participants
  Very low

Cinnamon herbal mouthwash; Nanosil (hydrogen peroxide) mouthwash; Irsha mouthwash vs Water (negative control) and zinc solution (positive control)

• Interventions for managing halitosis 2019 · Cochrane All outcomes
  Talebian 2009 (cross-over study) tested cinnamon herbal, Nanosil and Irsha mouthwashes versus water (negative control) and zinc solution (positive control); VSC by halimeter. We could not include the results in the…
  1 study
  GRADE not reported

2400 to 2800 ppm F toothpaste vs 440 to 550 ppm F toothpaste

2400 to 2800 ppm F toothpaste may leads to lower caries increment, surface index D(M)FS compared with 440 to 550 ppm F toothpaste (low certainty).

• Fluoride toothpastes of different concentrations for preventing dental caries 2019 · Cochrane All outcomes

  Closest to 36 months
  SMD -0.29 [-0.49, -0.08]
  Studies not reported
  Low

Two-phase oil-water mouthrinse (0.05% cetylpyridinium chloride) vs Control mouthwash

Oil water two-phase mouthwash (with cetylpyridinium chloride) showed no clear difference in volatile sulphur compounds (VSC), sulphide monitor compared with control mouthwash; GRADE not reported.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  1 week
  MD -11.0 [-25.26, 3.26]
  1 study · 50 participants
  GRADE not reported

1000 to 1250 ppm F toothpaste vs Non-fluoride (0 ppm F) placebo toothpaste

1000 to 1250 ppm F toothpaste showed no clear difference in proportion developing new caries compared with non-fluoride (0 ppm F) placebo toothpaste (low certainty).

• Fluoride toothpastes of different concentrations for preventing dental caries 2019 · Cochrane All outcomes

  Follow-up: 12 to 60 months
  RR 0.9 [0.77, 1.06]
  7 studies · 1898 participants
  Low

Triclosan mouthwash (with and without alcohol); zinc lactate + chlorhexidine + cetylpyridinium mouthwash vs Placebo mouthwash

• Interventions for managing halitosis 2019 · Cochrane All outcomes
  Lopez Jornet 2003 (4-arm RCT) compared triclosan mouthwash with and without alcohol and a zinc lactate + chlorhexidine + cetylpyridinium mouthwash versus placebo mouthwash (VSC by halimeter and OLT). We could not…
  1 study
  GRADE not reported

1000 mg champignon extract vs placebo

The review found no eligible studies for this question.

• Interventions for managing halitosis 2019 · Cochrane All outcomes

  mean 2 weeks
  Dentist-reported OLT score: listed in the Summary of findings table but no data reported. No data were reported for dentist-reported OLT score.
  0 studies
  No studies found