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I had a Rotodent tooth brush and it was really better than a regular tooth brush. The one's you buy in the store are not as good as the Rotodent but they are still better than a regular brush in my opinion.http://news.bbc.co.uk/1/hi/health/3500817.stm http://www.boston.com/news/globe/health_science/articles/2005/07/18/are_electric_toothbrushes_better_than_manual_ones/
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