News tagged with human teeth
Researchers Crack the Mystery of Resilient Teeth
Apr 17, 2009 |
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(PhysOrg.com) -- After years of biting and chewing, how are human teeth able to remain intact and functional? A team of researchers from The George Washington University and other international scholars have ...
Evidence from dirty teeth: Ancient Peruvians ate well
Other Sciences / Archaeology & Fossils
Dec 01, 2008 |
4.7 / 5 (6) |
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Starch grains preserved on human teeth reveal that ancient Peruvians ate a variety of cultivated crops including squash, beans, peanuts and the fruit of cultivated pacay trees.
Home tooth bleaching slightly reduces enamel strength
Apr 14, 2009 |
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New research shows that human teeth lost some enamel hardness after the application of several different products used in the home to whiten teeth. The study suggests that future generations of such products might be reformulated ...
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Science's breakthrough of the year: Uncovering 'Ardi'
Dec 17, 2009 |
2.3 / 5 (3) |
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The research that brought to light the fossils of Ardipithecus ramidus, a hominid species that lived 4.4 million years ago in what is now Ethiopia, has topped Science's list of this year's most significant s ...
French find puts humans in Europe 200,000 years earlier
Other Sciences / Archaeology & Fossils
Dec 15, 2009 |
4.1 / 5 (15) |
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Experts on prehistoric man are rethinking their dates after a find in a southern French valley suggested our ancestors may have reached Europe 1.57 million years ago: 200,000 years earlier than we thought.
Late-surviving megafauna exposed by ancient DNA in frozen soil
Dec 15, 2009 |
4.5 / 5 (2) |
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Extinct woolly mammoths and ancient American horses may have been grazing the North American steppe for several thousand years longer than previously thought. After plucking ancient DNA from frozen soil in ...
The mammoths' swan song revised
Other Sciences / Archaeology & Fossils
Dec 14, 2009 |
4.4 / 5 (12) |
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This is shown by samples of ancient DNA, analysed by an international team of research scientists under the leadership of Professor Eske Willerslev from Copenhagen University. Analyses of ancient DNA thereby ...
Older dental fillings contain form of mercury unlikely to be toxic
Dec 09, 2009 |
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A new study on the surface chemistry of silver-colored, mercury-based dental fillings suggests that the surface forms of mercury may be less toxic than previously thought. It appears online in ACS' journal ...
New technology helps scientists understand ancient fossils
Other Sciences / Archaeology & Fossils
Dec 07, 2009 |
5 / 5 (1) |
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Some of the world's oldest human bones and other ancient relics are studied here using some of the world's newest technologies.
Study shows nearly 1/3 of human genome is involved in gingivitis
Dec 07, 2009 |
4.8 / 5 (4) |
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Gingivitis, which may affect more than one-half of the U.S. adult population, is a condition commonly attributed to lapses in simple oral hygiene habits. However, a new study shows that development and reversal of gingivitis ...
Nature's fine designs: Scientists find modern lessons in ancient creations
Dec 04, 2009 |
4.5 / 5 (4) |
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(PhysOrg.com) -- Nature and its bottom-up processes for creating robust and responsive materials are inspiring new generations of synthetic materials and creative design.
New forensic technique gives clues about sharks from bite damage
Dec 01, 2009 |
5 / 5 (1) |
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Hit-and-run attacks by sharks can be solved with a new technique that identifies the culprits by the unique chomp they put on their victims, according to a University of Florida researcher and shark expert.
Rat pack: Scientists warming up to African rodent
Nov 28, 2009 |
5 / 5 (10) |
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(AP) -- Naked mole rats don't get cancer. They shrug off brushes with acid and age so well, some are older than the college-aged researchers handling them.
List of search results for human teeth
