Xylitol is a sugar substitute that teeth tolerate well.

In kid words

Xylitol is a sweet ingredient in some sugar-free gum and mints that tastes sweet but is not the same thing as sugar. You might spot it listed on a label, and that's completely normal.

Your teeth get along with it just fine. It's a people-only treat though, never something to share with a family dog.

The parent version

Xylitol is a natural sugar substitute, a sugar alcohol found in small amounts in some fruits and used as a sweetener in sugar-free gum, mints and a few toothpaste brands. The bacteria that cause cavities cannot feed on xylitol the way they feed on sugar, which is much of why it shows up in products marketed as tooth-friendly.

A note for pet owners: xylitol is dangerous to dogs, even in small amounts. If there is a dog in your home, keep xylitol gum, mints or candy safely out of reach, and contact a veterinarian right away if you think your dog has gotten into any.

Beyond its effect on the bacteria in a mouth, mainstream sources describe xylitol simply as a sugar substitute rather than a treatment. Ask your pediatric dentist whether xylitol products make sense as part of your child's own routine.

Where you might hear it at our office

You might hear xylitol mentioned around a conversation about cavity prevention at a preventative care visit, usually alongside more familiar names like fluoride and sealants. It is one small piece of a bigger picture, never the whole plan on its own, and that's a conversation to have with your pediatric dentist based on what already works for your child's teeth.

Curious about another word from a visit? The rest of the dictionary has more.

Related words

Fluoride. Cavity. Enamel.