Speaking of silly (or perhaps sadistic) things, doesn't
this seem like something out of
Marathon Man?
Fluorinex Active has come up with a device that uses an electrical current to help keep cavities away. Using 6-9 volts of electricity, the fluoride-based gel that sits in the tray of the gadget is ionized, then forms a protective layer over your teeth that should last for 5 whole years.
As an added bonus, if you wear it while sitting in your backyard on a summer night, you'll zap all the mosquitoes in the area, too.
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