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Tuesday, May 29, 2012

A New Twist on Soft Tooth Enamel

In 1947, happy days were here again. World II was over, the troops were home, and American popular culture had begun to pick up where it had left off. Among the more mundane, back- to-normal habits that some Americans embraced was buying lemons. Lots of lemons. Physicians had long claimed that lemon juice, rich in vitamin C, could help to fend off bouts of rheumatism, colds, and other common maladies. But in the spring of 1947, dentists at the Mayo Clinic sounded the first of several sour notes to come on the practice. In a case study of 50 patients, the Mayo dentists observed that too much lemon juice in the diet can lead to bad teeth. The explanation: Lemons are so highly acidic that, when consumed in excess, the juice corrodes tooth enamel.

For complete article: http://www.nidcr.nih.gov/Research/ResearchResults/ScienceBriefs/Archive/SNIB2010/September/Enamel.htm

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Disclaimer

Content on this blog are for informational purposes only, is neither intended to and does not establish a standard of care, and is not a substitute for professional judgment, advice, diagnosis, or treatment. ACES is not responsible for information on external websites linked to this website.

Thursday, May 24, 2012

Dental X-rays linked to brain tumors

People who get regular dental X-rays are more likely to suffer a common type of brain tumor, US researchers said on Tuesday, suggesting that yearly exams may not be best for most patients.

The study in the US journal Cancer showed people diagnosed with meningioma who reported having a yearly bitewing exam were 1.4 times to 1.9 times as likely as a healthy control group to have developed such tumors.

A bitewing exam involves an X-ray film being held in place by a tab between the teeth.

Also, people who reported getting a yearly panorex exam -- in which an X-ray is taken outside the mouth and shows all the teeth on one film -- were 2.7 to three times more likely to develop cancer, said the study.

For full article: http://sg.news.yahoo.com/dental-x-rays-linked-brain-tumors-us-study-042557832.html

Website supported by www.aces4ce.com
ACES is the world's leader in providing live webcast dental continuing education

Disclaimer

Content on this blog are for informational purposes only, is neither intended to and does not establish a standard of care, and is not a substitute for professional judgment, advice, diagnosis, or treatment. ACES is not responsible for information on external websites linked to this website.

Tuesday, May 22, 2012

Most People Don't Brush Their Teeth Effectively to Prevent Tooth Decay

A Swedish study found almost all Swedes brush their teeth, but only one in ten brushes teeth 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 their teeth more effectively.

Most Swedes regularly brush their teeth with fluoride toothpaste. But only few know the best brushing technique, how the toothpaste should be used and how fluoride prevents tooth decay.

Read more: Most People Don't Brush Their Teeth Effectively to Prevent Tooth Decay | MedIndia http://www.medindia.net/news/most-people-dont-brush-their-teeth-effectively-to-prevent-tooth-decay-101347-1.htm#ixzz1v2xWnTUD

Website supported by www.aces4ce.com
ACES is the world's leader in providing live webcast dental continuing education

Disclaimer

Content on this blog are for informational purposes only, is neither intended to and does not establish a standard of care, and is not a substitute for professional judgment, advice, diagnosis, or treatment. ACES is not responsible for information on external websites linked to this website.

Friday, May 18, 2012

Detecting Early Tooth Decay

“Both low-coherence light and ultrashort laser pulses can be used to measure internal structure in biological systems. An optical signal that is transmitted through or reflected from a biological tissue will contain time-of-flight information, which in turn yields spatial information about tissue microstructure.”

So began Huang et al. 20 years ago in the journal Science to describe their initial efforts to adapt a non-invasive fiberoptic imaging technique called optical coherence tomography, or OCT, to view tissues in the body. In this case, they visualized the retina and coronary artery. Five years later, Colston et al. applied OCT to the periodontal tissues of a pig, showing clearly the physical boundaries of the gingiva from the tooth and the tooth’s enamel from the cementum. This study marked the first time that OCT had imaged a hard biologic tissue successfully.

Since these groundbreaking papers, OCT is often employed with a polarization sensitive (PS) feature, creating the designation PS-OCT. The PS feature eliminates reflection from the tissue surface and monitors changes to the incident polarized light due to structural changes in the tissue.

For the complete article: http://www.nidcr.nih.gov/Research/ResearchResults/ScienceBriefs/Archive/SNIB2011/February/ToothDecay.htm

Website supported by www.aces4ce.com
ACES is the world's leader in providing live webcast dental continuing education

Disclaimer

Content on this blog are for informational purposes only, is neither intended to and does not establish a standard of care, and is not a substitute for professional judgment, advice, diagnosis, or treatment. ACES is not responsible for information on external websites linked to this website.

Monday, May 14, 2012

Bad Breath Could Speed Up Development of Stem Cells in Dental Pulp

Research suggesting that the compound responsible for bad breath could be used to speed up the development of stem cells in dental pulp.

Researchers led by Dr Ken Yaegaki, from Nippon Dental University in Japan, found that hydrogen sulphide (H2S) speeds up the development of teeth stem cells into liver cells. The researchers tested the effect of H2S by collecting stem cells from the dental pulp from teeth obtained from patients who underwent tooth extractions.

The researchers then divided the stem cells collected into two groups. The first group was incubated in a H2S chamber while the second was used as a control group. The researchers found that stem cells that were incubated in the H2S chamber developed into liver cells faster than those in the control group.

Dr Yaegaki said that not only did the cells develop sooner but they were also of high purity. Until now, nobody has produced the protocol to regenerate such a huge number of hepatic cells for human transplantation. Compared to the traditional method of using fetal bovine serum to produce the cells, our method is productive and, most importantly, safe, Dr Yaegaki said.

Source-Medindia
Read more: MedIndia http://www.medindia.net/news/bad-breath-could-speed-up-development-of-stem-cells-in-dental-pulp-98086-1.htm#ixzz1oj30Y4kw

Website supported by www.aces4ce.com
ACES is the world's leader in providing live webcast dental continuing education

Disclaimer

Content on this blog are for informational purposes only, is neither intended to and does not establish a standard of care, and is not a substitute for professional judgment, advice, diagnosis, or treatment. ACES is not responsible for information on external websites linked to this website.