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Star lover
March 2nd, 2018, 08:26 AM
Tooth enamel develops in layers over time, creating a pattern of rings like tree rings that bear indications of age, diet, health and even environmental changes.

The concentric rings are called Retzius lines or striae of Retzius, named for Anders A. Retzius, the Swedish anatomist who studied and wrote about them in the 1830s.

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Other interesting facts about teeth:

* Tooth enamel is the hardest substance in the human body; however, don't you use your pearly whites to open bottles!

* In 1994, a West Virginia prison inmate braided dental floss into a rope, scaled the wall, and escaped!

* In China, in 1498, the first toothbrush with bristles was made, using hair from hogs, horses, and badgers. The first official commercial toothbrush was manufactured in 1938.

* A snail’s mouth is no larger than the head of a pin, but can contain over 25,000 teeth!

* In early America, blacksmiths often also served as dentists. How about a tooth filling to go with your new horse shoes?!

* In Egypt, mummies have been found with fillings comprised of resin and malachite, and gold wire was used to bind together loose teeth.

* The Romans, in 200 AD, used pretty impressive dental technology! They restored cavity-ridden teeth with gold crowns, and utilized fixed bridgework to fix gaps from missing teeth. They also used a form of toothpaste concocted from honey and crushed eggshells.

* In Medieval Germany, the only cure for a toothache was to kiss a donkey.

* Like your fingerprints, everyone has a unique set of teeth. Even identical twins have different “dental fingerprints”!

* The stone-faced farmer in artist Grant Wood’s famous “American Gothic” painting was actually the artist’s dentist!

* Contrary to popular belief, George Washington’s famous dentures weren’t made from wood. His four pairs of custom chompers were crafted from gold, ivory, lead and a mixture of human, donkey, and hippopotamus teeth (take care of yours and you won’t have to think about it!).

* The cotton candy making machine that made widely consumed cotton candy possible was co-invented by a dentist. Before it was cotton candy, the fluffy confection was called “fairy floss.”

Hulamoon
March 2nd, 2018, 09:39 AM
Snails have teeth? What the heck are they chewing on? lol

Star lover
March 2nd, 2018, 09:58 AM
Snails have teeth? What the heck are they chewing on? lol

Beats me.....but found this....

Snails have thousands of teeth which are used for scraping or cutting food. The teeth are arranged in rows on a chitinous ribbon and together form the radula. A typical radula may have 120 rows of 100 teeth i.e. around 12,000 teeth, though some species may have more than 20,000 teeth. The arrangement and shape of teeth varies from family to family.

I just figured they slimed their food to death..... :icon_rofl: