Bristels
the brush
If your talking about the book called The History Of The Toothbrush I believe it is Rebecca Blain.
A toothbrush in Sanskrit can be called "danta-pracaṇḍaḥ" (दन्त-प्रचण्डः).
it might be to the toothbrush but it might not so when the cold sores go brush your teeth with the same toothbrush if they come back its because of the toothbrush.
A toothbrush without bristles is often referred to as a toothbrush handle or a toothbrush base. It typically serves as the structural component that holds the bristles in place. In some contexts, it can also be seen as a placeholder or an incomplete toothbrush. Without bristles, it cannot effectively clean teeth.
Shove it in your mouth, and move your hand back and forth.
Toothbrush
It's called a toothbrush. You put something called toothpaste on it and scrub your teeth with it.
The best way to change the battery on a Braun electric toothbrush is to simply remove the current in place battery by removing the rear cover via the clip at the base of the toothbrush. Obviously different models have this clip in different places. Once the old battery has been removed the new battery can be easily clipped into the toothbrush.
Water is not wasted. It will flow back into the environment. So the answer is zero.
Maybe because before they invented one, nobody brushed their teeth, so when they started , they only had one tooth left. Just a thought though, that's probably not the reason. I beileve the answer is this: The first toothbrush recorded in history was made in 3000 B.C., the toothbrush was called a chewstick, which was a twig with a frayed end used to brush each tooth, one at a time. Hence the name toothbrush.
If there is mold on your toothbrush, it's time to buy a new toothbrush.