A Cochrane systematic review finds tongue scrapers have short-term efficacy in controlling halitosis

Outhouse.et.al-2006

Beyond microbial community composition: functional activities of the oral microbiome in health and disease

Duran-Pinedo.et.al- 2015

Effect of Tongue Brushing on Bacteria and Plaque Formed in Vitro

Gilmore and Bhasker.et.al-1972

Effectiveness of mechanical tongue cleaning on breath odour and tongue coating: a systematic review

Van der Sleen.et.al - 2010

Halitosis: the multidisciplinary approach

Bollen.et.al- 2012

Hydrogen sulfide-producing bacteria in tongue biofilm and their relationship with oral malodour

Woshio.et.al - 2005

Hygiene of the tongue

Ralph.et.al-1987

Tongue cleaning in the elderly and its role in the respiratory and swallowing functions: Benefits and medical perspectives

Izumi.et.al - 2021

Tongue coating and salivary bacterial counts in healthy/gingivitis subjects and periodontitis patients

Gómez.et.al-2001

Tongue coating and tongue brushing: a literature review

Danser.et.al-2005

Tongue coating: Its characteristics and role in intra-oral halitosis and general health—A review

Seerangaiyan.et.al -2018

Tongue-coating as risk indicator for aspiration pneumonia in edentate elderly

Abe.et.al - 2008