How can a long standing halitosis and gum bleeding be cured besides oral hygiene?

Halitosis: See a dentist to rule out all dental causes and a physician, if necessary, to rule out all medical causes. The cause(s) will determine the treatment and prevention.

Dental exam: You may notice a fetid odor or loosening teeth or the gum tissue between your teeth will get gray or white and flatten; but the only sure diagnosis is from a periodontal exam and x-rays with your dentist. As long as the bacteria is in your gums, your breath may never get better.

See a dentist: In the majority of cases, the cause of bad breath, or halitosis, is the product of bacteria in the mouth and gum disease. The proper diagnosis is the key to a successful treatment. See your dentist for Halimeter test, diagnosis and bad breath treatment that depends on its cause. Good luck.