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A group of experts from the Columbia University, in the United States, announces the development of a new approach to dental care, which could see old dental implants and fillings become history. The technique revolves around using stem cells to grow new teeth, and it has already proven to be a valid approach in labo... |
24 May 2010
12:01 GMT |
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A new study performed by Dolores Piperno, a staff scientist from the Smithsonian Tropical Research Institute and the National Museum of Natural History, in collaboration with Tom Dillehay, an archeology professor at Vanderbilt University, focused on analyzing teeth of ancient Peruvians. The research was aimed at dete... |
2 December 2008
08:53 GMT |
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After Hurricane Ike destroyed her house on the beach in Caplen, on the ravaged Bolivar Peninsula in Texas, paleontologist Dorothy Sisk discovered the fossilized remains of a mammoth tooth. Soon after the disaster, Dorothy Sisk asked her colleague, Jim Westgate, a trained paleontologist from the Lamar University ... |
6 October 2008
10:18 GMT |
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Tooth loss is not only very unappealing, it is also extremely unhealthy: a new research study published in the Cancer Epidemiology, Biomarkers and Prevention journal found a tight connection between tooth loss and increasing risks of developing 3 forms of cancer (esophageal, head and neck, and lung). Until now, the ... |
14 May 2008
16:41 GMT |
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Why do teeth become yellowish or spotted? The administration at early ages of certain drugs (like tetracycline) or that of large doses of fluorine will determine the appearance of permanent stains on the teeth. On the other hand, teeth whose nerves were sectioned or have experienced traumas that killed their pulp als... |
7 May 2008
09:27 GMT |
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So far, China has provided us with a trove of dinosaur discoveries, including their evolutionary offshoot, the birds. Those fossils explain a lot of the evolution of the first birds. An impressively preserved new Chinese fossil bird fills a gap in this evolution. Eoconfuciusornis ("early Confuciusornis"), described i... |
5 May 2008
03:34 GMT |
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The Neanderthals inhabited Europe and neighboring areas of western Asia. Early proto-Neanderthal feathers were found in Europe in fossils which were 350,000 years old. 130,000 years ago, fully Neanderthal traits appeared. The Neanderthals started to be displaced by modern humans (Homo sapiens) about 45,000 years ago ... |
30 April 2008
03:28 GMT |
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Today, North America is a land of prairies and oak or coniferous forests. But once, it was a tropical paradise and like any tropical environment, monkeys were present. Now, a research published in "Proceedings of the National Academy of Sciences" describes the earliest-known primate to inhabit North America. The 55.... |
17 March 2008
04:40 GMT |
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Man, you drink some energy beverage and you work like a machine. At least, this is what advertising says. Science presents another story about drinking too much caffeine. And a new research published in the journal "General Dentistry" shows that energy drinks can make your teeth look like those of a meth consumer. A... |
14 March 2008
14:06 GMT |
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French are real lover boys due to the consume of red wine. Resveratrol, a product found in red wine and known for its antioxidant and anticancer effects, has been proved by many researches to boost heart health, erection and to impede prostate cancer. But resveratrol, a type of polyphenol, is abundant also in red win... |
30 January 2008
03:35 GMT |
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We are more familiarized with the ferocious meat-eating dinosaurs, like T-rex. But some appear to have been skilled fishers, too! Baryonyx was found in 1983 near Dorking in Surrey, UK. It was 125 million years old, and was classified to the family of spinosaurs. The beast was up to 10 m (33 ft) long and weighed up to... |
14 January 2008
06:10 GMT |
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1.The name of "armadillo" comes from the Spanish "armado" (armored), the name being given after the Spanish conquistadors. 2.Today there are 20 species of armadillos. They evolved in South America and only one species entered North America, the nine-banded armadillo. Living species vary in body length from 12.5 cm (5... |
3 January 2008
08:10 GMT |
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There's no living creature the same size with us to have such a long childhood. And a new research makes us even more unique: teeth show that Neanderthals matured faster than modern humans, thus the long childhood and slow development are specific to us. Amongst all primates, humans and Neanderthals included, th... |
6 December 2007
03:58 GMT |
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It seems that bad teeth also mean bad hair. Dental infection outbreaks have been found to induce alopecia areata (localized baldness), one of the most mysterious types of hair loss. Alopecia areata usually causes bald patches on the scalp, sometimes also on the body, and affects both males and females of all ages, in... |
28 November 2007
05:00 GMT |
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1. Specialists say that if during an accident you lose a tooth, do not throw it. Your chances of reimplanting the teeth can be of 50 % if you go to the dentist 30 minutes after the 'incident'. Try to stay calm, as much as possible. Hold the tooth by the corona and rinse it gently with warm water. Don't... |
20 November 2007
13:41 GMT |
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Even the dinosaurs enjoyed the fragrance of the magnolia blossoms, as this is one of the oldest flowering tree types in the world. But they are more than beautiful flowers: the bark of these trees contains polyphenols, that's why it was used for centuries by the Chinese and Japanese medicine. Now the magnolia ba... |
20 November 2007
02:52 GMT |
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Those enormous long-necked dinosaurs are presented like some kind of giraffes of the dinosaur era, devastating tree tops. But a new odd 110-million-year-old species with a vacuum cleaner-like muzzle suggests that not all of them did this, as presented in a new research published online in the journal PLoS One. A team... |
16 November 2007
04:29 GMT |
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Your teeth pattern rooted within the first reptiles struggling to turn into mammals. A new fossil mammal species from the Jurassic era, during the full blown dinosaur evolution, reveals that the basic tooth pattern encountered in all mammal species today emerged independently at least twice in the past, and also poin... |
1 November 2007
03:48 GMT |
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These were the horror cats of our prehistory. But as it wasn't the case with T-rex, Stone Age people had to face these beasts. A new research has shown the way the terrible predators used to kill their prey and the surprise is that, despite their huge fangs, the bite of these predators was surprisingly weak. Smi... |
2 October 2007
03:11 GMT |
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Why do they call them wisdom teeth, when in fact what they can really induce is actually pain!?... Beyond the popular belief, a new study shows that these annoying molars are the result of an imbalance in the developmental mechanism that permits them to make their way into the back of the jaw while pressing on the ot... |
1 October 2007
03:41 GMT |
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350,000 to 45,000 years ago, Europe's only humans were the Neanderthals. These people were adapted to a cold climate, having a large braincase, short but robust bodies and large noses, and the males were about 1.65 m tall (5' 5") and inhabited Europe and neighboring areas of western Asia. Even if their brai... |
12 September 2007
07:08 GMT |
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Compared to him, a bone crushing hyena looks like a child with the mouth filled with tooth decay. The Malaysian nicknamed "King Tooth" pulled a seven-coach train employing a steel rope clenched in his mouth, establishing a new record for the heaviest weight pulled with teeth. Amid the grunting and gasping, Raja Gigi&... |
4 September 2007
16:36 GMT |
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This is the most dangerous and spectacular predatory fish: with a strong rocket-like body, up to 7.2 m (24 ft) long and up to 3.4 tons heavy, the white shark can kill from fish (sharks included) to large seals and dolphins. Swimmers and surfers (and sometimes even boats) have no chance. Now a digital analysis of a gr... |
3 September 2007
03:26 GMT |
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A big gap in the human evolution is going to be filled. Recently found fossil teeth of a gorilla-like ape that lived about 10 million years ago are a first archaeological clue of when gorillas split off from the human-chimp lineage of apes.The finding was made in the Afar rift valley of Ethiopia, where most important... |
31 August 2007
04:09 GMT |
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Being the hunk in the group surely brings a lot of sexual advantages for a male. For animals and for humans too. But a new research shows that having huge muscles comes with a severe downside. At least in hoofed mammals, large bucks and bulls have relatively small teeth, which wear out rapidly and impede their prope... |
25 July 2007
05:22 GMT |
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There are much bigger fishes in the river than this rather small guy, that do not pass over 42 cm (1.2 ft) in length and 3.85 kg (9 pounds) in weight, that trigger the dread in any traveler through South America. Their image is horrific, with a mouth full of razor-sharp 4 mm long canine-like teeth, which are replaced... |
3 July 2007
13:46 GMT |
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We separated ourselves from chimps 4 million years ago. This took place in Africa. And after that, the rest of the world became a place for African colonists. When did these colonists enter Europe? We do not know for sure, but now Spanish archaelogists have discovered the oldest fossil tooth ever found in Western Eur... |
3 July 2007
04:19 GMT |
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Low cost means low quality. But when it's about food and related items, this could mean "low" health. The US government warned consumers on Friday to stay off the toothpaste made in China as it contains a toxin commonly used as antifreeze. The Food and Drug Administration said people should discard toothpaste "m... |
5 June 2007
06:07 GMT |
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What do you think about chocolate toothpaste? It's exactly the bitterest chemical found in chocolate, theobromine, which encourages the fight against cavities. This chemical, a molecule similar to caffeine, is also a stimulant. Preliminary tests revealed to a Tulane team that this chemical is more efficient than... |
31 May 2007
15:36 GMT |
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Those suckers piss you off with their whims of not letting you smoke in all kinds of public places. Dirtbags...They do not want to renounce their teeth for your pleasure moments...A new research published in this month's issue of the Journal of Periodontology points out that subjects with periodontitis (bone los... |
4 April 2007
03:46 GMT |
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What makes us different from the apes?Scientists say that amongst many other traits, the long childhood and delayed maturity is a characteristic tracked now in the early members of our own species in Africa. Previous studies showed that earlier hominids, like Australopithecus and Homo erectus, experienced short growt... |
13 March 2007
07:34 GMT |
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