Replacing and properly cleaning toothbrush is very important in dental health. It's said that a toothbrush shouldn't be used for more than 6 years. There are also special ways to clean and store toothbrush. When we buy bath and shower accessories we must also think of storing toothbrush. This article will give you more idea regarding the same, http://www.dispenser.com/blog/organizedbath/how-long-is-too-long-for-a-toothbrush/.