1. The average person spends 38.5 days for brushing teeth over a lifetime.
  2. During the lifetime, the mouth will produce enough saliva to fill 2 swimming pools.
  3. If you don’t floss, you miss cleaning 40% of your tooth surfaces.
  4. Tooth enamel is the hardest tissue in the human’s body, and it’s made of calcium and phosphate, like bones, but teeth are not bones. Enamel is stronger because of the specific proteins and crystallites that form it.
  5. Enamel protects the soft dentine beneath it, which is made of living cells and calcified tissue.
  6. If you’re right handed, you will chew your food on the right side of your mouth. If you’re left handed, you will tend to chew food on your left side.
  7. Commercial floss was first manufactured in 1882.
  8. The first toothbrush with bristles was made in China in 1498. They used bristles from hogs, horses, and badgers. Modern toothbrushes with nylon bristles was introduced in 1938, and the first electric toothbrush was made in 1954. 
  9. Each tooth has its own unique shape, size and position in the mouth. There are no two identical teeth and smiles.
  10. Your mouth is home to millions bacteria of 200 – 300 varied species.
  11. Brushing within half an hour of eating or drinking certain foods can actually damage enamel as the enamel is softer. Wait an hour before brushing.
  12. The most valuable tooth belonged to Sir Isaac Newton. In 1816 it was sold in London for £730 (£730 in 1816 is equivalent in purchasing power to about £70,500 in 2019). The tooth was set in a ring.
  13. In 1905 Irene Newman, who was the dental nurse, was trained to clean teeth as a hygienist. Officially she became Dental Hygienist in 1917 when she received the world’s first dental hygiene license in Connecticut, USA.
  14.  “Bluetooth” is named after Danish King Harald Blatand (eng. Bluetooth) because of his ability to unite warring Scandinavian factions, just as Bluetooth unites wireless devices. Why Bluetooth? The legend says the King was consuming blueberries so regularly and in such an amount that they stained his teeth blue.
  15. Not too long ago, in Victorian era, dentures were common wedding gifts in the British Isles. When a woman got married, all her teeth were pulled, and a set of dentures made up to help her and her husband save on the very expensive cost of dental work later.