News tagged with teeth
Two studies find Botox injections help reduce nighttime teeth grinding
(Medical Xpress) -- Two groups working independently have found that patients who suffer from nighttime teeth grinding, a condition known as nocturnal bruxism, found relief after being injected in their temple ...
Medications
May 01, 2012 |
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Stem cells grow fully functional new teeth
(Medical Xpress) -- Researchers from Japan recently published a paper in PLoS One describing their successful growth and transplantation of new teeth created from the stem cells of mice.
Medical research
Jul 13, 2011 |
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Study finds material loss protects teeth against fatigue failure
(Medical Xpress)—Scientists of the Max Planck Institute for Evolutionary Anthropology in Leipzig and the Senckenberg Research Institute in Frankfurt together with dental technicians have digitally analysed ...
Dentistry
Apr 25, 2013 |
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Dental anesthesia may interrupt development of wisdom teeth in children
Researchers from Tufts University School of Dental Medicine have discovered a statistical association between the injection of local dental anesthesia given to children ages two to six and evidence of missing lower wisdom ...
Dentistry
Apr 03, 2013 |
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Biological tooth replacement—a step closer
Scientists have developed a new method of replacing missing teeth with a bioengineered material generated from a person's own gum cells. Current implant-based methods of whole tooth replacement fail to reproduce a natural ...
Dentistry
Mar 09, 2013 |
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Using mouthrinse reduces plaque and gingivitis more than toothbrushing alone
New research published in the January/February 2013 issue of General Dentistry, the peer-reviewed clinical journal of the Academy of General Dentistry (AGD), indicates that the use of a germ-killing mouthrinse in addition to reg ...
Dentistry
Feb 19, 2013 |
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Japan tooth patch could be end of decay
Scientists in Japan have created a microscopically thin film that can coat individual teeth to prevent decay or to make them appear whiter, the chief researcher said.
Dentistry
Sep 16, 2012 |
4.6 / 5 (45) |
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No evidence to support removing impacted wisdom teeth
Little evidence exists to support removing impacted wisdom teeth that are not causing pain and swelling, aren’t negatively affecting other teeth, and are disease-free, finds a new review in The Cochrane Li ...
Dentistry
Jun 15, 2012 |
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Tiny tots in the dentist's chair among changes in pediatric dentistry
(HealthDay) -- If you've been to the dentist with your children recently, you may have noticed that things have changed since you were a kid.
Dentistry
May 18, 2012 |
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Sports and energy drinks responsible for irreversible damage to teeth
A recent study published in the May/June 2012 issue of General Dentistry, the peer-reviewed clinical journal of the Academy of General Dentistry, found that an alarming increase in the consumption of sports and energy drinks ...
Health
May 01, 2012 |
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Common habits that harm your teeth
Are you wrecking your teeth without even knowing it? For instance, chewing on ice or opening stuff with your teeth may be convenient but using your teeth as tools can cause them to crack or chip.
Dentistry
May 03, 2013 |
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Early dental care can help keep kids smiling for years to come
(HealthDay)—Every baby has a beautiful smile, and to keep it that way, parents should teach good dental habits at an early age, experts say.
Dentistry
Feb 10, 2013 |
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Experts warn of misbehaving tooth fairy
Opinions of the tooth fairy as kind and giving may need to be revised following "mounting reports of less child-friendly activity", says a paper published in the BMJ Christmas edition and appearing online today.
Health
Dec 13, 2012 |
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Two-step tooth implantation and built-up bone can be longer lasting: study
Periodontists routinely grow bone in the mouth to guarantee a stable environment for teeth and tooth implants. But whether it's better to build up bone before placing the implant, or to simply place the implant and allow ...
Dentistry
May 22, 2012 |
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From one generation to the next, dental care changes
(HealthDay) -- Stephanie Crowe, a mother of three from Croton-on-Hudson, N.Y., still remembers dreading a visit to the dentist as a young girl. It was often a painful experience, and her family's dentist showed little empathy ...
Dentistry
May 18, 2012 |
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Tooth
Teeth (singular tooth) are small whitish structures found in the jaws (or mouths) of many vertebrates that are used to tear, scrape, and chew food. Some animals, particularly carnivores, also use teeth for hunting or defense. The roots of teeth are covered by gums. Teeth are not made of bone, but rather of tissues of varying density and hardness.
Teeth are among the most distinctive (and long-lasting) features of mammal species. Paleontologists use teeth to identify fossil species and determine their relationships. The shape of the animal's teeth are related to its diet. For example, plant matter is hard to digest, so herbivores have many molars for chewing. Carnivores, on the other hand, need canines to kill prey and to tear meat.
Mammals are diphyodont, meaning that they develop two sets of teeth. In humans, the first set (the "baby," "milk," "primary" or "deciduous" set) normally starts to appear at about six months of age, although some babies are born with one or more visible teeth, known as neonatal teeth. Normal tooth eruption at about six months is known as teething and can be painful.
Some animals develop only one set of teeth (monophyodont) while others develop many sets (polyphyodont). Sharks, for example, grow a new set of teeth every two weeks to replace worn teeth. Rodent incisors grow and wear away continually through gnawing, maintaining relatively constant length. Many rodents such as voles (but not mice) and guinea pigs, as well as rabbits, have continuously growing molars in addition to incisors.
For more information about Tooth, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
