toothbrush was invented in the year 1939
toothbrush was invented in the year 1939
in the 1400s
3000 BC
toothbrushes weren't invented then!
computerstereo discscassette tape recorderslaserimproved printing techniquesfibertip pensheated hair curlerselectric toothbrushes
Many, many countries make toothbrushes.
They did not invent tooth brushes in the late 1400 because toothpaste wasn't invented then! They used there fingers to wash they teeth with water
nothing
Yes, peanut butter people can eat toothbrushes.
Toothbrushes for dogs come in a variety of colors. My dog's toothbrush is blue.
Any toothbrush is only as effective as the person using it. If used properly, most manual toothbrushes can adequately clean your mouth. I typically recommend electric toothbrushes to people who have some kind of physical limitation, such as arthritis.
nothing
no
It's not common but probably somewhere in the world it is possible, especially in countries where toothbrushes are in short supply.