Livionex Dental Gel. Livionex Inc.'s proprietary technology works by activating Edathamil, a well-known food-grade chelator. Livionex Dental Gel’s Activated Edathamil shows results that no other toothpaste has ever been able to achieve. It penetrates and disrupts plaque, while dramatically reducing gingival inflammation and bleeding. This stuff sounds fantastic, but why in the world does it have to be sooooo expensive???