the toothpaste is useful or notuseful if it is useful then tell in detail or notuseful tell in detial or who invite first toothpste and use ??
Answers
Explanation:
Toothbrushes and toothpaste are essential oral care items you can pick up at so many stores, but where did they come from? Of course, they haven't always looked like the toothbrushes we have today. Learn the history of toothpaste and toothbrushes and how to make sure you're choosing the toothbrush you need.
The world's first toothbrushes
Most historians agree ancient Babylonians and Egyptians created the first 'toothbrushes' from frayed twigs between 3500-3000 B.C. We know this because ancient Egyptians meticulously preserved items in their tombs, including these "chew sticks."
The Chinese are believed to have invented the first natural bristle toothbrush in the 1400s, using pigs' hair for the bristles and bone or bamboo for the handles. These toothbrushes were taken to Europe, and this design was adapted to use horsehairs, which many Europeans preferred. Other models in Europe used feathers. These ancient tools were not as cleanly as modern toothbrushes.
Who invented the toothbrush?
William Addis designed the more modern toothbrush in England around 1780. The handle was carved from cattle bone, and the brush portion was made from pigs' hair as well. In 1844, the first 3-row bristle brush was designed.
According to the Library of Congress, natural bristles made from animal hair were still used until Dupont de Nemours invented nylon. Nylon started the development of the modern toothbrush in 1938. By the 1950s, softer nylon bristles were created, and people preferred these for toothbrushes. The first electric toothbrush was made in 1939, and the first electric toothbrush widely-used in the U.S. was invented in 1960.
Modern toothbrushes and how to choose the right toothbrush
Today, both manual and electric toothbrushes come in many shapes and sizes. They are typically made of plastic molded handles and nylon bristles. Now dentists and dentistry researchers can test what kinds of toothbrushes are the best for oral health. The most recent toothbrush models include handles that are straight, angled, curved, and contoured with grips and soft rubber areas to make them easier to hold and use.
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