The second most common disease in the United States is tooth decay. The first is the common cold.
The earliest record of tooth decay was described by the Sumarians as "tooth worms".
Historical evidence from 2700 BC shows the Chinese used acupuncture to treat tooth pain.
In the Middle Ages, people believed that dogs' teeth boiled in wine made an excellent mouth rinse for tooth decay.
During the Middle Ages, the popular belief was that you could grow a lost tooth by obtaining a tooth from someone else - ideally from a hanged criminal.
Some other common tooth remedies from ancient time include boiling earthworms in oil and place this worm oil in your ear. Also it was believed to make loose teeth firm, simply tie a frog to your jaw.