Most dentists recommend changing your toothbrush every three months. In three months’ time, your toothbrush will have accumulated a lot of bacteria simply from use and sitting out in the bathroom. Even if it is kept in a case, the risk for bacteria growth is even higher since enclosed toothbrushes stay damp longer. When you go over the three month mark, you are most likely introducing billions of bacteria into your mouth each time you brush. If you brush regularly, that means you are placing a dirty, worn out toothbrush in your mouth twice a day, every day.
Besides being gross, doing this can also be dangerous. Illnesses and infections have occurred in people who did not change their toothbrush in a timely manner. When brushing with an old toothbrush, you introduce these billions of bacteria to your gums, tongue, and throat, where they can find access to the rest of your body.
If you actively change your toothbrush every three months that means you will go through four toothbrushes a year. Depending upon the size of your family, this number could be higher. Prepare by buying toothbrushes in bulk at your local grocery or dollar store. This way, you won’t spend too much money on a disposable product, and you’ll never be caught without a fresh replacement toothbrush when the time comes.