Question · asked by 1 review

Tongue scraper or tongue cleaner (One Drop Only tongue cleaner; Tongue-Putzer scraper; polystyrene scraper) vs Toothbrush (used to clean the tongue): Volatile sulphur compounds (VSC), halimeter

Population
Adults (over 18 years) with a clinical or self-assessed diagnosis of halitosis
Intervention
Tongue scraper or tongue cleaner (One Drop Only tongue cleaner; Tongue-Putzer scraper; polystyrene scraper)
Comparison
Toothbrush (used to clean the tongue)
Outcome
Volatile sulphur compounds (VSC), halimeter

What each review found

Include earlier review versions
FindingEffectStudiesGRADE certainty
Tongue scraper or tongue cleaner (One Drop Only tongue cleaner; Tongue-Putzer scraper; polystyrene scraper) vs Toothbrush (used to clean the tongue)
Volatile sulfur compound (VSC) levels measured by portable sulfide monitor · Adults (over 18 years) with a clinical or self-assessed diagnosis of halitosis · Immediately to 35 min post-intervention (Seemann 2001); 1 week (Pedrazzi 2004)
Tongue scraping for treating halitosis (2006) · Cochrane All outcomes
No summary of findings table or GRADE assessment (pre-GRADE review); narrative synthesis, data not pooled. Seemann 2001: peak VSC reduction 42% with the tongue cleaner, 40% with the tongue scraper and 33% with the…2 studies · 40 participantsGRADE not reported

Findings are shown side by side, never pooled across reviews.

The reviews

ReviewSearched up toIncluded studiesAMSTAR 2
Tongue scraping for treating halitosis
2006 · Cochrane All outcomes
2005-09Not listedNot assessed
How reviews are matched to this question

Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.