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the claim

Tongue scraping reduces bad breath more than brushing the tongue with a toothbrush.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 sources for · 1 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that tongue scraping reduces bad breath more than brushing the tongue with a toothbrush?

Yes. A Cochrane systematic review found tongue scrapers produced a small but statistically significant greater reduction in volatile sulfur compounds than toothbrushes, and other studies show tongue scraping reduces halitosis measures.

Verdict: SUPPORTED · 5 sources for, 1 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 5
A simple method to reduce halitosis; tongue scraping with probiotics
2019
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Gurpinar, B., Yildirim, G., Kumral, T. L., Akgun, M. F., Sari, H., Tutar, B., & Uyar, Y. (2019). A simple method to reduce halitosis; tongue scraping with probiotics. doi.org. https://doi.org/10.1088/1752-7163/ab503e

Evidence against · 1
Tongue cleaner
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Tongue cleaner. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Tongue_cleaner

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More for · 4
Effectiveness of mechanical tongue cleaning on breath odour and tongue coating: a systematic review.
2010
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Sleen, M. I. V. d., Slot, D. E., Trijffel, E. V., Winkel, E. G., & Weijden, G. A. V. d. (2010). Effectiveness of mechanical tongue cleaning on breath odour and tongue coating: a systematic review.. doi.org. https://doi.org/10.1111/j.1601-5037.2010.00479.x

A Cochrane systematic review finds tongue scrapers have short-term efficacy in controlling halitosis.
2006
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Outhouse, T. L., Fedorowicz, Z., Keenan, J. V., & Al-Alawi, R. (2006). A Cochrane systematic review finds tongue scrapers have short-term efficacy in controlling halitosis.. pubmed.ncbi.nlm.nih.gov. https://pubmed.ncbi.nlm.nih.gov/17004573/

A cross‐over study on the effect of various therapeutic approaches to morning breath odour
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A cross‐over study on the effect of various therapeutic approaches to morning breath odour. (n.d.). cir.nii.ac.jp. https://doi.org/10.1111/j.1600-051x.2006.00955.x

Efficacy of a Zinc Lactate Mouthwash and Tongue Scraping in the Reduction of Intra-Oral Halitosis: A Single-blind, Controlled, Crossover Clinical Trial-A Pilot Study.
2021
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A, D., S, S., E, M., & I, O. (2021). Efficacy of a Zinc Lactate Mouthwash and Tongue Scraping in the Reduction of Intra-Oral Halitosis: A Single-blind, Controlled, Crossover Clinical Trial-A Pilot Study.. doi.org. https://doi.org/10.3390/jcm10235532

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