Everything that uses electricity is getting smart — or eventually will. We've had electric toothbrushes for some time now. But now, those toothbrushes are finally getting smart functionality. One of ...

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Even as an adult, it can be difficult to be sure how you’re supposed to brush your teeth. It can be tricky to make sure you’re brushing for long enough, getting all the right areas, and brushing often ...

Smart toothbrushes have been around for a few years now, but they haven’t quite caught on. Sure, they promise better habits via connected sensors, but they also tend to be very expensive ($100 and up) ...

When Colgate was developing its new low-waste Keep toothbrush, which has a reusable aluminum handle and replaceable heads (a starter pack costs $9.99; additional heads are $4.99 for two), the company ...