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The Cavity Zapper
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Cavity prevention has never been great. The skulls of
Cro-Magnon people, the early version of human beings, show that they had tooth decay. People have been having cavities for 35,000 years. |
Arab doctors were the first to understand that
teeth needed to be cleaned. They invented instruments to scrape teeth. They used mouthwashes and tooth powders. They would get a stick and start banging it down to soften it at one end. This was like a toothbrush. |
An American named Greene Vardiman Black,
who lived from 1831 to 1915, was the first to notice that the sticky coating on teeth was bacterial. He figured out that cavities are caused by bacteria. His theory was proved to be correct in the early 1960's. |
Click on any photo to hear voices.
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