For a long time bad breath was attributed to bacteria build up along the gum lines and between teeth, and the common diagnosis to prevent bad breath was to make sure people brushed their teeth and and flossed. Later on mouthwash was developed as it was understood that bad breath can originate from other areas of the mouth, not just teeth.
The fact that the tongue acts like a sponge for germs and bacteria, and is one of the causes of bad breath wasn’t taken seriously, dentists are more concerned about strength and hygiene of teeth, and typically had little to say about bad breath and tongue cleanliness.
Pharmaceutical companies, on the other hand realised this problem and decided to remedy it by selling mouthwashes, chewing gum and mints designed to combat this problem.
Many people even carried toothbrushes and mini mouthwash bottles with them in order to brush their teeth inbetween meals in the hope that they can remove and resurgence of bad breath.
However recently developments in tongue scrapers allow peoples to hygienically and effectively remove excess residue from the tongue in order to keep build up of bad breath at bay.
It’s now possible to use a device like the ora-brush or waterpic with the tounge attachment to perform a deep cleanse of the tongue, which is the main cause of bad breath and halitosis.
What’s little known is that while tongue scraping is a recent phenomena in the western world, Tongue scraping was used commonly in ancient China and India, and was recommend as part of oral hygiene.