Researchers ask, how sustainable is your toothbrush?

Researchers at Trinity College Dublin have examined the sustainability of different models of the most commonly used oral health product—the toothbrush—to ascertain which is best for the planet and associated human health.

Gadget Watch: The Internet-connected toothbrush

Armbands that track how much you move have become popular ways to motivate people to get fit. But how fit are your teeth? Are you lazy about brushing them?

CeBIT: Gadgets galore at world's top tech fair

A Shakespeare-reciting robot, the world's most merciless alarm clock and "intelligent" cocktail shakers were among the gadgets wowing visitors at the CeBIT high-tech fair on Wednesday.