The Science of Halitosis and bacteria in your mouth

SCIENCE OF HALITOSIS,BACTERIA IN YOUR MOUTH,halitosis,Bad Breath

Halitosis, also more commonly known as bad breath, is caused by anaerobic producing bacteria which normally live WITHIN the of the tongue and in the throat. These bacteria are supposed to be there because they assist with digestion by breaking down proteins found in specific foods, mucous or phlegm, blood, and in diseased or "broken-down" oral tissue. Under certain conditions, these bacteria start to break down proteins at a very high rate. Proteins are made up of amino acids, two of which (Cysteine and Methionine) are dense with sulfur.
When the "beneficial" bacteria come into contact with these amino acids, the halitosis and "lousy-tasting" sulfur compounds are released from the back of the tongue and throat. These halitosis compounds are often scientifically referred to as Volatile Sulfur Compounds (VSC's), where volatile means vaporous and effervescent.
Because my original degree is in Bacteriology, let me explain a very important fact about these "bugs". First of all they are not infectious. Everyone in the world has the same group of bacteria in their mouth. You cannot "catch" halitosis from someone, even through kissing. Since they are part of our normal oral flora, you cannot permanently remove them from your mouth either, not by tongue scraping, not with antibiotics, and not by using rinses which claim to "lift the bacteria off your tongue". The only scientifically proven and clinically effective method of halting halitosis is by attacking the bacteria's ability to produce VSC's, and by converting the VSC's into non-odorous and non-tasting organic salts.
Speaking about bacteria, there is one other fact that you must understand about them. They are classified as "anaerobic" which literally means "without oxygen". They thrive in an environment where oxygen is NOT present. That is why they do not live on the surface of your tongue. Instead, they live in between the papillae (fibers) that make up your tongue.
These sulfur compounds are actually by-products of anaerobic bacteria. Everyone needs these bacteria because they assist the digestion process. Unfortunately as of yet for some undetermined reason, these particular bacteria are found in higher numbers in those plagued by halitosis. There are various theories that attribute the cause of halitosis to hormonal changes, a history of taking medications (usually antibiotics or sulfa drugs because they create an imbalance of oral bacteria), or even due to genetics (halitosis disorders appear to run in some families). It is known however, that halitosis seems to be evenly split between men and women.