A good friend of mine was part of the pioneering team that initially researched this stuff over at the Technical University of Eindhoven in the Netherlands. See

A good friend of mine was part of the pioneering team that initially researched this stuff over at the Technical University of Eindhoven in the Netherlands. See this article from 2006: http://www.newscientist.com/article/mg19125586.200-plasma-needle-could-replace-the-dentists-drill.html http://www.newscientist.com/article/mg19125586.200-plasma-ne... I can remember getting pretty freaked out when he was explaining it to me.