Ninety percent of us have had a run-in with the dentist’s drill. Dentists fix cavities by drilling out the decayed part of the tooth and replacing it with silver material called amalgam. But not everyone likes a mouthful of silver. These materials have their own set of problems. Now researchers are well on their way to a more natural and durable filling.
Please visit http://www.adobe.com/products/flashplayer/ to download the latest Flash player