@cnet tweets related to: How To, Teeth, Space

International Space Station Commander Chris Hadfield shows the world how astronaut's clean their chompers in orbit. (Credit: Video screenshot by CBSNews.com) For those of you who hate brushing your teeth under normal circumstances, think about how much harder it is to clean those pearly whites in space, with zero gravity and no sink to get water from or spit into afterwards.
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Watch: How to brush your teeth in space http://t.co/crXf3AhP8D

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