http://articles.mercola.com/sites/articles/archive/2000/09/17/tooth-laser.aspxHow to kill tooth decay without a drill A LASER wand could replace the dentist's drill if clinical trials beginning next year are successful. The key is photodynamic therapy (PDT) , in which light activates a killer molecule that wipes out bacteria inenCommunityServer 2008.5 SP1 (Build: 31106.3070)