A tooth (plural teeth) is a small, calcified, whitish structure found in the jaws (or mouths) of many vertebrates and used to break down food. Some animals, particularly carnivores, also use teeth for hunting or for defensive purposes. The roots of teeth are covered by gums. Teeth are not made of bone, but rather of multiple tissues of varying density and hardness. The cellular tissues that ultimately become teeth originate from the embryonic germ layer, the ectoderm
William Kennewel wasn’t a big fan of water – drinking soda instead of it pretty much all the time; now, he has become living proof of the damage soft drinks can cause to your teeth. “I’m told a normal person has about 23 teeth, but … I only had 13 left and they had to [...]
Energy and sports drink do give you a quick rush when you might feel like nothing else can do the trick for you – but at a huge cost. Aside from all the other downsides, which include heart and stomach issues, researchers have now shown that people who drink this kind of drinks are essentially [...]
A fresh look at some already known fossilized remains revealed quite a surprise: they turned out to be the earliest people in Europe. From analyzing stone tools and other such artifacts, researchers have long believed the earliest Homo Sapiens to settle on the continent some 42-44.000 years ago; the only problem is, there were no [...]
A recently published remarkable study describes how scientists from Japan have successfully manage to grow teeth inside a lab using mice stem cells. Takashi Tsuji from Tokyo University of Science and his team managed to achieve this after extracting stem cells from the molars of mice. They then transported these cells to the lab where [...]
Paleontologists turned into dentists after an examination of the fossilized jaw of a reptile from the Paleozoic era revealed what’s considered to be the world’s oldest tootache. Dated back 275 million years ago, the Oklahoma found Labidosaurus hamatus must have had some serious issues with its sugar tooth, as researchers observed missing teeth and eroded [...]
It’s not because they deserve it, if that’s what you’re thinking. Actually, the old tale that a woman loses a tooth every time she delivers is not as far from the truth as you’d think. A study published in this month’s issue of Current Anthropology concluded that women have had more problems with teeth since [...]
Wed, Feb 6, 2013
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