We can always get behind a 3D-printed object that does something practical. So we're intrigued by the Blizzident 3D-printed toothbrush, because this insane thing basically does all the brushing for you.
When you brush your teeth, you probably miss the plaque hidden in the nooks and crannies of your chompers. But that's because your toothbrush is a generic product made for thousands of different people with thousands of different mouths, to say nothing of human error (read: laziness). Blizzident, on the other hand, is created from a 3D scan of your very own mouth. When it's time to brush, you just bite down on Blizzident for six seconds, and it will supposedly magically clean your teeth in the proper, dentist-recommended manner.
Sound too good to be true? It might be. But if you want to give it a go, you can go to your dentist to have him or her take an impression of your teeth; you know, like one of those casts you had made to mould your retainer once upon a time? Then you send the cast off to a dental lab to have it made into a 3D file. On the very off chance that you don't have a dental lab in your Rolodex, Blizzident will refer you. Once you have the file in the proper format, you load it onto Blizzident's servers, and you can order your very own teeth-brushing machine for $US300.
Sure, it seems like a crazy idea, and it would be risky to stop brushing your teeth altogether, but it's an intriguing proposition. For example, have you ever tried to brush a toddler's teeth? It's not so easy. And while $US300 is expensive for a product that's unproven, the more people who give it a shot the better it might get. And if it works, it'll save you a mint in dentist fees. [Blizzident via Quartz]