1. A dentist in China built an 8 foot tall tower made out of 28,000 human teeth. You can watch a video of it here: http://www.youtube.com/watch?v=SNp13PEOghA
2. Like fingerprints, everyone’s tongue print is different.
3. In an entire human lifetime, the average person can produce 10,000 gallons of saliva. As people age, their salivary secretions decrease making them more susceptible to dental diseases.
4. To break a Guinness Book of World Record of "Most People Brushing Their Teeth Simultaneously", 10,800 students brushed their teeth for about three minutes simultaneously in Manila, Philippines.
5. "Love Your Teeth Day" is a national holiday in China, celebrated on September 20th. Campaigns to promote oral health have been carried out every year since 1989.
6. Hundreds of years ago bad teeth were considered a "rich man's disease" since only rich people could afford sweets and usually had very decayed teeth. Queen Elizabeth I was known for having very bad teeth.
7. In the dark ages, superstitions held that a person could cure his/her toothache or re-grow a lost tooth by obtaining a tooth from someone else- ideally a hanged criminal. It was believed that just the mere possession of a tooth would work.
8. A root canal is not painful. With modern technology, root canals are no longer anything to be afraid of and the procedure feels similar to getting a cavity filled.
9. Sports, accidents and fights are the leading cause of tooth loss in people under the age of 35. Wear a mouth guard!