<P> The tongue surface can be a reservoir for tooth pathogens and periodontal pathogens . It can contribute to the recolonization of tooth surfaces . People with periodontal disease are more likely to have a thicker tongue coating and a microbial flora that produces more volatile sulphur compounds compared to those who have healthy periodontal tissues . Tongue cleaning might help to reduce halitosis, dental caries and periodontal disease . </P> <P> Tongue cleaning can cause discomfort . Improper use of a tongue cleaner may induce the gag reflex and / or vomiting . Overuse of a tongue cleaner may also cause damage to the taste buds . Some people have inappropriately used the tongue cleaner to scrape or brush the lingual tonsils (tongue tonsils). </P> <P> There has been one reported case where a woman possibly had infective endocarditis from bacteremia following the use of a tongue cleaner . Individuals with previous infective endocarditis and high - risk cardiac valves may be at a higher risk from bacteremia . </P> <P> Ayurveda, the practice of traditional Indian medicine, recommends tongue cleaning as part of one's daily hygiene regimen, to remove the toxic debris, known as Ama . Tongue cleaning has existed in Ayurvedic practice since ancient times, using tongue scrapers made from copper, silver, gold, tin or brass . In modern time, plastic scrapers are used in India and the Far East . </P>

What can be used as a tongue scraper