News tagged with 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 | 3 / 5 (1) | 1
(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 | 5 / 5 (2) | 1 |
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 | 4 / 5 (1) | 0 |
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 | 5 / 5 (1) | 0 |
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 | 5 / 5 (2) | 0 |
(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 | 5 / 5 (1) | 0
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 | 5 / 5 (1) | 0
(AP)—A Virginia man who received a full-face transplant says he's now able to walk past people without a second look.
Other Dec 04, 2012 | not rated yet | 0
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) | 15
Maria Orellana, DDS, PhD, assistant professor in the UCSF School of Dentistry, has long observed that Latino parents are often more resistant to having their children get braces or retainers to straighten ...
Dentistry Aug 09, 2012 | not rated yet | 0
Little evidence exists to support removing impacted wisdom teeth that are not causing pain and swelling, arent negatively affecting other teeth, and are disease-free, finds a new review in The Cochrane Li ...
Dentistry Jun 15, 2012 | 3 / 5 (2) | 0 |
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 | not rated yet | 0
(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 | 5 / 5 (1) | 1 |
(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 | not rated yet | 0
Almost all Swedes brush their teeth, yet only one in ten does it in a way that effectively prevents tooth decay. Now researchers at the Sahlgrenska Academy, University of Gothenburg, are eager to teach Swedes how to brush ...
Diabetes May 15, 2012 | 2.5 / 5 (2) | 0
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.
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