A data-collecting device that can tell the difference between eating, speaking, smoking and drinking.
Beam Toothbrush can monitor a user's dental hygiene and display the data via an app.
What's the going rate for a baby tooth? Novelty app calculates how much money should go under the pillow.
A lab-created molecule kills off the bacteria that causes tooth decay.
Japan is racing to sell everything gold. Line ups are so long, some trading shops have to turn customers away.
A new substance could make filling cavities obsolete.