Suffering bad breath is very compromising the whole life of a patient. Unfortunately it is no topic in discussions at all. Sometimes patients really don’t know about their problem, but fell some sort of debarment from society. People don’t laugh any more, avoid meeting and simply feel depressed.
Often the reflux of gastric juice is called the cause of the bad breath, but that case is very rare.
Very often a severe periodontitis is the cause. Bacteria in the inflamed dental pockets cause bad smell. Even strong mouth rinse can not cover that smell.
Also bacteria on the tongue or tonsils can cause trouble in a similar way.
Intensified dental hygene and a periodontal therapy will help to repel the desease.