Plasma Torch...now in your dentist's office.

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Interesting....alarming...http://www.economist.com/sciencetech...ry_id=13794903 "To tell which polarity to use go to the bathroom and pour some water down the drain. If it runs clockwise use straight polarity. If it runs counter-clockwise use reverse polarity. Or if it just gurgles use alternating current." -RandomDave
Reply:Pretty neat.They also are now using filling material that has a slow release antibiotic in it.It saved a cracked molar of mine a couple of years back."Any day above ground is a good day"http://www.farmersamm.com/