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www.loc.gov/rr/scitech/mysteries/tooth.html

The toothbrush as we know it today was not invented until 1938. However, early forms of the toothbrush have been in existence since 3000 BC. Ancient civilizations used a "chew stick," which was a thin twig with a frayed end.

en.wikipedia.org/wiki/Toothbrush

The toothbrush is an oral hygiene instrument used to clean the teeth, ... The first electric toothbrush, the Broxodent, was invented in Switzerland in 1954. By the turn of the 21st century nylon had come to be widely used for the bristles and the handles were usually molded from thermoplastic materials.

museumofeverydaylife.org/.../a-visual-history-of-the-toothbrush

The first bristle toothbrush was invented by the Chinese during the Tang Dynasty (619-907) and was most likely made from the coarse hairs of the cold-climate hog. Hogs living in Siberia and Northern China grew very stiff hair in response to the harsh climate, yielding a sturdy bristle material.

www.history.com/news/who-invented-the-toothbrush

Who invented the toothbrush? Author: ... In 1938 the DuPont company developed the first toothbrush with nylon fibers, which proved sturdier and more efficient than animal hairs. But in the United ...

www.colgate.com/.../history-of-toothbrushes-and-toothpastes

The invention of nylon started the development of the truly modern toothbrush in 1938, and by the 1950s softer nylon bristles were being made, as people preferred these. The first electric toothbrush was made in 1939 and the first electric toothbrush in the US was the Broxodent in 1960.

dentaldorks.com/electric-toothbrush-history

It was also around that time that the first 3-row bristle toothbrush was invented. By the year 1869, Addis’ company was able to completely outsource the manufacturing of brushes to machines. The demand and supply of toothbrushes by Addis continued through the years to come.

www.padental.org/Online/Public/Children/Invention of...

The first “toothbrush” (with bristles) was invented in China and was made of animal bone, bamboo and hog hair. The bristles were very hard. 1780 William Addis of England invented the first mass-produced toothbrush.

riverrundentalspa.com/history-toothbrush

Many of us take for granted a simple invention that does so much to help maintain oral health: the toothbrush.Far from a mundane dental invention, the toothbrush has a deep and interesting history that belies its otherwise routine and ordinary use.

www.thoughtco.com/history-of-dentistry-and-dental-care-1991569

A Comprehensive History of Dentistry and Dental Care. Search the site GO. History & Culture. Inventions Famous Inventions ... She specialized in writing about inventors and inventions, in particular. Bellis died in March 2015. Updated March 19, 2018 ... oral cavity, and associated structures. Who Invented the Toothbrush?

www.wonderopolis.org/wonder/when-was-the-toothbrush-invented

It would not be until 1857 that the first United States patent for a toothbrush would be granted to H. N. Wadsworth. Mass production of toothbrushes didn't start in the United States until 1885, though. Toothbrush design didn't improve much for many decades, unfortunately. Animal bristles were prone to falling out.