4 months ago
Last edited at 5:28PM on 8/19/2013
Do you know how many bacteria live on your toothbrush? Brace yourself! Researchers have found that a single toothbrush can be loaded with as many as 10 million germs and bacteria. In fact, recent studies even found that your toothbrush could be a breeding ground for tiny microorganisms.
But before you swear off brushing, know this: These bacteria aren't a big threat to your pearly whites.researchers who discovered those toothbrush-dwelling microorganisms found that they didn't make people sick, toothpaste has an anti-germ component built into it, and the microbes need moisture to survive. So as long as your toothbrush is given time to dry after you use it, it should be safe.
Every three month .Studies have shown that a new toothbrush is used normally after three months, the effect on staining teeth and cleaning gums will be greatly reduced. And it is more difficult to clean to oral cavity which is difficult to reach when the toothbrush become soft.
If you have a regular toothbrush, then three months. I have an electric toothbrush. So that I don't have to keep replacing it. Because it last longer. About 10 to 12 months if you have an electric one.
A brush showing excessive wear and tear to the bristles should be replaced sooner, because of wear and tear, this makes the bristles less effective. And In fact, most dentists suggest that both adults and children should replace their toothbrush every 3 months.