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According to the American Dental Association, storing your toothbrush upright and allowing it to air dry is the best way to prevent microbial growth between bristles. Toothbrush holders not only make ...

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Robert Donofrio is director of NSF International's Applied Research Center. He contributed this article to LiveScience's Expert Voices: Op-Ed & Insights. K. michiganensis has a capsule structure with ...

A few simple steps will keep this everyday essential fresh. Toothbrush holders trap moisture and residue, making them one of the germiest, most overlooked spots in the bathroom. Cleaning the holder ...