Be careful which gum you chews: some sugar-free gums are bad for your teeth thanks to acids that cause tooth erosion. Amy Messere/Flickr

Health Check: is chewing gum actually good for your teeth?

A recent study found sugar-free products can be just as damaging to your teeth as sugar because many of them contain acid that causes tooth erosion. But what about sugar free gum?
Repeated exposure to high levels of acid can cause tooth erosion. Joshua Hunter/Flickr

Health check: what’s eating your teeth?

Most of us know sugar is bad for teeth because it feeds bacteria that cause tooth decay. But fewer of us are aware that equally damaging is repeated exposure to acids in food and drinks.

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