Bad breath is caused by decaying particles of food and bacteria that pass into your bloodstream and to the lungs, where odor is emitted from breathing. The root causes of bad breath are bacteria,or decaying food particles remaining in spaces between the teeth, on the gums and on the tongue. In many cases, good daily oral hygiene, including brushing, flossing and rinsing, can keep bad breath in check. Other conditions, such as gum disease, can cause persistent bad breath. Of course, if you eat certain kinds of food, take certain kinds of medications, or smoke cigarettes or cigars, you may also experience symptoms of bad breath. In some cases, persistent bad breath may be a sign that you have a more serious health problem, including a gastrointestinal, respiratory or sinus problem. In most cases, over-the-counter mouthwashes and rinses will temporarily freshen breath, but only mask the root cause. Good oral health habits can contribute to reducing and eliminating halitosis: brushing and flossing daily as well as regular professional cleanings performed by our office.