Teeth reveal that Canadian dinosaurs knew how to share

Dinosaur teeth have been studied many times already. Scratches and pits on the surface of herbivore teeth provide clues to how they fed, and what types of plants they fed on. But many of these studies look at only a few teeth, or only a few specimens. Not so with this study. » 6/16/14 3:33pm 6/16/14 3:33pm

An optical illusion is making dentists drill holes that are too big

There's an optical illusion where a small, enclosed area appears larger when surrounded by a larger area. This visual anomaly, called the Delboef illusion, is making the holes that dentists cut in preparation for fillings appear smaller than they really are. » 11/06/13 9:40am 11/06/13 9:40am

This bizarro 3D-printed toothbrush can clean your teeth in 6 seconds

Life just suddenly got all that more convenient. Introducing Blizzident, a $300 toothbrush that's specifically tailored to your own teeth. Just stick it in your mouth and let the bristles do the rest. » 10/01/13 3:57pm 10/01/13 3:57pm

Preserved bacteria reveal how we've been rotting our teeth for 7,500…

Bacteria outnumber the cells in our own body by a factor of 10 to 1 — as many as 100 trillion microbes per person — and yet we know almost nothing about how bacteria have changed as humans evolved. » 2/17/13 2:00pm 2/17/13 2:00pm

Meet Vermin Supreme, the presidential candidate who will fund time…

For the last several decades, boot-headed performance artist Vermin Supreme has been running for political office on the platforms of zombie awareness and mandatory dentifrice for all Americans. » 1/08/12 3:25pm 1/08/12 3:25pm

This dental robot is forever silently screaming

Meet Showa University's Showa Hanako 2, a dental training robot that's made of the same silicone skin that lines love dolls. We've seen some lifelike dental bots before, but this machine's pliable skin takes it to a whole 'nuther level. » 7/02/11 7:30am 7/02/11 7:30am

Wisdom teeth could provide your own private bonanza of stem cells

Wisdom teeth, the vestigial molars that ancient humans used to grind plants but nowadays serve no purpose, might have their uses after all. The teeth possess a gold mine of cells that can be reprogrammed into pristine, treatment-ready stem cells. » 9/10/10 2:04pm 9/10/10 2:04pm

Thanks to nanotechnology, you'll never have a root canal again!

A new dental therapy could repair damaged nerves inside teeth, making root canals a thing of the past. And it's all done with an ultrathin layer of nanofilm. » 7/05/10 9:30am 7/05/10 9:30am

Bioengineered Pig Teeth Grown Inside a Rat's Stomach

These are bionengineered tooth crowns grown from pig cells that were implanted in a rat's stomach. Obviously a beta version resulted. But eventually scientists hope to use teeth like these in your mouth. Yum. Image by Douglas McFadd via Getty. » 12/21/07 7:30am 12/21/07 7:30am