Persistent bad breath is a sign of an untreated gum infection called periodontitis. Bad breath is often accompanied by bleeding from the gums, sensitivity to hot and cold foods or liquids, with a loss of the gum line and, in advanced cases, a mobility on the teeth. Bad breath is the result of a bacterial infection caused by the accumulation of food between the teeth and the gum. These foods contributes to bacterial growth in the region, resulting in a defense reaction of the body: the inflammation. The inflammation kills the bacteria, but also the surrounding tissue as collateral. The smell of dead cells, the accumulated blood and bruised tissue are responsible for this persistent bad breath

Bad breath is a marked sign of an advanced infection of the gums. The disease must be detected as early as possible because there are two dangers. The first, the disease is not painful, but can grow alarmingly and leave the impression that there is no reason to worry. The second, the supporting bone does not regenerate. Therefore, any lost is cumulative and irreversible.