A New York company is offering a water-free toothbrush, which uses liquid toothpaste that comes in a cartridge.It’s a daily ritual ingrained into Americans since childhood: brush your teeth twice a day (three times if you do the after-lunch thing). And for nearly all Americans it involves three things: a toothbrush, toothpaste and water.
But now a New York company says it can do away with the water, introducing a mechanized toothbrush that uses a liquid toothpaste (is it paste if it’s liquid?) that can be spit out called the Aquafree Toothbrush The company, United Treatment Centers, unveiled the product at a dental convention at the Jacob K. Javits Convention Center this week and says it plans to give 100,000 of its toothbrushes to New York schoolchildren.
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http://cityroom.blogs.nytimes.com/2009/12/03/brushing-your-teeth-without-water/