You brush your teeth neatly twice a day, because you know you keep them clean that way. But have you ever thought about the hygiene of your toothbrush itself? That is a lot dirtier than you initially think.
Sharing the toothbrush
According to research by O2 Mobile Life Report, millennials prefer to share their toothbrush with each other than lend their smartphone to a friend. At least nine percent of the participants in the study regularly lend his or her toothbrush to a friend.
Imagine this: just before you go to bed, brush all the bacteria from your teeth that have collected in your mouth during the day. Then rinse it quickly with water and put your wet toothbrush back on the spot near your sink and leave it there until the next brush. The place where all the bacteria you have that day (and the rest of the days before) multiply a little more each day. Chances are that you have already got up to run to the supermarket for a new toothbrush. In that case, wait a little longer: there is more.
There are people who borrow someone else's toothbrush. Of course you only do that if you are not dirty about the other person and if the thing looks clean at least. Looks, indeed, because he is not really clean. Fact: when you brush your teeth with someone else's brush, you are actually spreading his or her leftover food through your own mouth. Another fact: research has shown that in 60 percent of the toothbrushes poop bacteria live. I don't think we need to explain what else you get from the other person in your mouth.
You really don't have to brush your teeth with a filthy toothbrush. According to various studies, it is healthy to replace your toothbrush with a new one every three months, in order to avoid the worst bacteria. In addition, it is important to always dry it after brushing and to keep it in a clean, dry place (preferably not near a toilet, because of splashing bacteria that you do not want on your toothbrush).