As you?ve surmised, you?re in the same boat as about 40 million Americans who also deal with bad breath, which is also called halitosis. For this common problem, countless breath freshening products exist, such as mouthwash [2], toothbrushes [3], dental floss [4], and tongue scrapers [5]. However, some of these may only temporarily mask odors instead of resolving the true cause of chronic bad b...