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An unpleasant odor from the mouth, commonly referred to as bad breath. Halitosis can be caused by the consumption of certain foods, poor oral hygiene, alcohol or tobacco use, dry mouth, or by certain chronic medical conditions. Halitosis is the third most common reason that people seek dental care (after tooth decay and gum disease). The most common cause of bad breath is poor dental hygiene. As bacteria break down particles of food, sulfur compounds are produced that cause odor.
Several internal medical conditions also can cause bad breath. They include diabetes, liver disease, respiratory tract infections, and chronic bronchitis. You'll want to see your doctor to rule out things like acid reflux, postnasal drip, and other causes of chronic dry mouth (xerostomia).
In our clinics we use certain instruments to detect and cure halitosis.