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Evidence found and GRADE certainty

5 questions · 5 findings · 1 reviews · Oral medicine and oral cancer

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No studies found 3 · 60%GRADE not reported 1 · 20%Very low 1 · 20%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Mechanical tongue cleaning (tongue scraper) vs No tongue cleaning

Adverse events · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…

The review found no eligible studies for this question.

1 finding from 1 review
  • 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

Mechanical tongue cleaning (tongue scraper) vs No tongue cleaning

Patient-reported OLT score · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…

The review found no eligible studies for this question.

1 finding from 1 review
  • 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

Mechanical tongue cleaning (tongue scraper) vs No tongue cleaning

Quality of life · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…

The review found no eligible studies for this question.

1 finding from 1 review
  • Interventions for managing halitosis 2019 · Cochrane All outcomes
    Quality of life was a prespecified secondary outcome. None of the 44 included studies in the review (across all comparisons) reported quality-of-life data (review-wide evidence gap).
    0 studies
    No studies found

Mechanical tongue cleaning (tongue scraper) vs No tongue cleaning

Dentist-reported organoleptic test (OLT) score (scale 0 to 5) · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…

It is very uncertain whether mechanical tongue cleaning (tongue scraper) changes dentist-reported organoleptic test (OLT) score (scale 0 to 5) compared with no tongue cleaning (very low certainty).

1 finding from 1 review

Mechanical tongue cleaning (tongue scraper) vs No tongue cleaning

Volatile sulphur compounds (VSC), halimeter · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…

Mechanical tongue cleaning (tongue scraper) showed no clear difference in volatile sulphur compounds (VSC) compared with no tongue cleaning; GRADE not reported.

1 finding from 1 review