Any person that you ask would agree that sharing ones toothbrush is just plain unhygienic and unthinkable. As discussed on http://seattlesmiledentist.com/, even if its with someone very close to you like a family or relative, sharing your toothbrush with someone else is a big no-no. However, even with the principle, partnering infection can still happen. But how exactly is that?
Research and studies have shown that a toothbrush can easily be infected with oral bacteria coming from other toothbrushes. It is a common practice among families to store toothbrushes in one storage space. This is the reason why any airborne bacteria find it very easy to transfer or infect one toothbrush to that of the other. This heightens the risk of your entire family getting infected with the common cold or teeth and gum related infections such as the periodontal disease. That being said, one can easily conclude that the best course of action in this case is to make use of a good toothbrush cover. That way, you can minimize the spread of bacteria that comes about when a vulnerable toothbrush gets splattered with dirty water or gets into contact with the human skin or other toothbrushes. Just make sure that you rinse your toothbrush thoroughly and wait for it to completely dry before putting the cover.