Clark: Everyone has halitosis at some time in their life.
Narrator: This is Science Today. Dr. Glenn Clark of UCLA's School of Dentistry, says halitosis, or bad breath, can be caused by a number of metabolic disorders, such as diabetes or liver disease. But the main culprit is plaque, which Clark says is easier to control.
Clark: It's really this simple: Brush your tongue until it's pink and floss your teeth until it doesn't bleed. And if you do those things, then generally, you control 90 percent of halitosis. Cleaning the tongue, though, is not part of most people's routine. And it's not that people don't want to do it, it's that they don't see the connection.
Narrator: Another way to control halitosis may be in the form of a soon-to-be developed hand-held, bad breath detector.
Clark: I think it has real value because it's a simple concept and you should be able to sell people a breath analyzer that they can buy like they buy a pocket calculator.
Narrator: Clark expects the UCLA clinic will receive the first prototype of such a device. For Science Today, I'm Larissa Branin.