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

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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.

Study Warns of Killer Bugs in Dentures

A new study has warned that dentures, despite its clean look, could be teeming with killer bugs like MRSA.

Researchers have advised that putting infected false teeth in a microwave oven for three minutes makes them safe.

Dentures are known to get covered with thin layers of bacteria called biofilms, which can lurk until they are breathed into the lungs.

Nearly 20 million people in the U.S. wear full or partial dentures often infected with MRSA or drug-resistant staphylococcus aureus bacteria.

Read more: Study Warns of Killer Bugs in Dentures | MedIndia http://www.medindia.net/news/study-warns-of-killer-bugs-in-dentures-99839-1.htm#ixzz1sE115MTb

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A point pollution source, not only of mercury but also of other amalgam constituents

Shraim A, Alsuhaimi A, Al-Thakafy JT Taibah University, Faculty of Science, Chemistry Department, Al-Madinah Al-Munawarah, Saudi Arabia; University of Queensland, National Research Centre for Environmental Toxicology (EnTox), 39 Kessels Road, Brisbane, QLD 4108, Australia. Current literature suggests that amalgam waste from dental clinics is a point-source of mercury pollution in the environment. However, apart from mercury, other amalgam constituents (e.g. Ag, Sn, Cu, and Zn) in dental clinics' wastewater have not been reported in the literature before. The objective of this study was to evaluate the concentrations of mercury and other metals in the wastewater of some dental clinics and the influent of a wastewater treatment plant in Al-Madinah Al-Munawarah (KSA). This renders dental clinics wastewater a hazardous waste which should be properly treated before it is discharged into the environment.

For full article: http://dental.researchtoday.net/archive/8/5/8972.htm

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More Americans seeking dental treatment at the ER

By LINDSEY TANNER AP Medical WriterAssociated Press

CHICAGO—More Americans are turning to the emergency room for routine dental problems—a choice that often costs 10 times more than preventive care and offers far fewer treatment options than a dentist's office, according to an analysis of government data and dental research.

Most of those emergency visits involve trouble such as toothaches that could have been avoided with regular checkups but went untreated, in many cases because of a shortage of dentists, particularly those willing to treat Medicaid patients, the analysis said.

The number of ER visits nationwide for dental problems increased 16 percent from 2006 to 2009, and the report released Tuesday by the Pew Center on the States suggests the trend is continuing.

For full article: http://www.scsun-news.com/ci_20058367

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Unhealthy Gums Increase Risk of Premature Delivery

Gum disease can do more than affecting just your gums. It can increase the risk of diabetes, cardiovascular disease and premature delivery. The following is the conclusion arrived at a conference on periodontal disease, held at New York.

Participants at the conference highlighted the accumulating evidence regarding increased risk of serious illness in association with gum disease. They further reflected the need for a collaborative work between both dentists and medical health professionals.


Read more: Unhealthy Gums Increase Risk Of Premature Delivery | MedIndia http://www.medindia.net/news/view_news_main.asp?x=8099#ixzz1nbXWqvoX

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Possible link between gum disease and bowel cancer

The bacteria associated with the most common cause of tooth loss in adults could be a pre-curser for the development of bowel cancer, according to a team of scientists.

The link comes as scientists at the Dana-Farber Cancer Institute and the Broad Institute in America found an abnormally large number of Fusobacterium – a bacterium associated with the development of periodontal disease – in nine colorectal tumour samples, pointing to the possibility the two could be associated.

For full article: http://www.dentistry.co.uk/news/4859--Oral-health-Possible-link-between-gum-disease-and-bowel-cancer

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Guidelines on Infant Oral Health

The American Academy of Pediatric Dentistry recommended infants 6 to 12 months old for dental visits. More than 40 percent of children have tooth decay by the time they reach kindergarten. In order to help prevent tooth decay, dental experts at Nationwide Children’s Hospital are reminding parents to schedule dental appointments for their toddlers.

Studies have shown that if children experience tooth decay in their baby teeth, they are more likely to develop tooth decay in their permanent teeth. By bringing their child to a dentist at an early age, parents learn about the structure of the child’s mouth, preventative information on infant oral health and introduce their toddlers to the act of brushing their teeth.

Infant oral health is the foundation for preventing future tooth decay,” said Paul Casamassimo, DDS, MS, chief ofDentistry at Nationwide Children’s Hospital. “If a child experiences tooth decay at an early age, it is a very difficult process to stop. The purpose of this initial visit is not only to introduce these toddlers to visiting the dentist, but also to provide preventative information to prevent tooth decay.

Read more: Guidelines on Infant Oral Health | MedIndia http://www.medindia.net/news/Guidelines-on-Infant-Oral-Health-95620-1.htm#ixzz1loBcZF00

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Studies Evaluate Health Effects of Dental Amalgam Fillings in Children

Scientists supported by the National Institute of Dental and Craniofacial Research (NIDCR), part of the National Institutes of Health, report in this week’s Journal of the American Medical Association the results of the first-ever randomized clinical trials to evaluate the safety of placing amalgam fillings, which contain mercury, in the teeth of children.

Both studies—one conducted in Europe, the other in the United States—independently reached the conclusion: Children whose cavities were filled with dental amalgam had no adverse health effects. The findings included no detectable loss of intelligence, memory, coordination, concentration, nerve conduction, or kidney function during the 5-7 years the children were followed. The researchers looked for measurable signs of damage to the brain and kidneys because previous studies with adults indicated these organs might be especially sensitive to mercury.

The authors noted that children in both studies who received amalgam, informally known as “silver fillings,” had slightly elevated levels of mercury in their urine. But after several years of analysis, they determined the mercury levels remained low and did not correlate with any symptoms of mercury poisoning.

For full article: http://www.nidcr.nih.gov/Research/ResearchResults/NewsReleases/ArchivedNewsReleases/NRY2006/PR04182006.htm

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Device Claims to Protect Teeth from Cavities for 5 years

Would you be willing to place a gel filled tray in your mouth and receive six to nine volts from a battery or wall socket to avoid cavities for 5 years? Sorry, not me. This sounds a little too much like a visit to the electric chair.

An Israeli company called Fluorinex actually claims that they have developed such a system. According to an article in Engadget, two models are available. I can only assume that one model plugs into a wall socket and the other one plugs into a battery. Engadget states that, "According to news site Isracast, the five year protective layer is formed by an efficient ion exchange process through an electro-chemical reaction in which fluor ions displace the hydroxide ions at the outer layer of the tooth."

When I was much much younger, I went to a party where a chair had been connected to a car battery. A video camera was placed in front of the chair. The joke was to sit in the chair and be on camera. Yes, I sat on it and I will never forget that feeling in my bum for as long as I live.

For full article: http://dentistry.about.com/od/dentalfactsfaqs/a/device.htm

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Blast of gas that could replace dentist's drill and make fillings stronger

A new ‘gas-firing’ device may offer a pain-free alternative to the dentist’s drill — and could make fillings even more hard-wearing.

The device, which resembles an electric toothbrush, cleans out cavities in rotten teeth in only 30 seconds, according to new research.

It works by generating high-energy gas and liquid particles to kill bacteria and blast out the decayed pulp of the tooth.


Read more: http://www.dailymail.co.uk/health/article-2090764/Blast-gas-replace-dentists-drill-make-fillings-stronger.html#ixzz1kOhZxZ8a

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Fluoridated toothpaste fast falling out of favor

FLUORIDE is a naturally occurring element that prevents tooth decay when ingested systemically or applied topically. Researchers believe that there are several mechanisms by which fluoride achieves its anti-carious effect. It reduces the solubility of enamel in acid by converting hydroxyapatite into less soluble fluoroapatie; it may exert an influence directly on dental plaque, reducing the ability of plaque organisms to produce acid; and it promotes the remineralization of tooth enamel in areas that have been decalcified by acids.

Most likely, fluoride works by a combination of these effects. But the remineralization effect of fluoride is of prime importance, because it results in a reversal of the early caries process, and gives rise to enamel more resistant to decay.

In 1914, fluoride was added to toothpaste, but became more widespread when it was recommended by the American Dental Association (ADA) in the 1950s. The Centers for Disease Control and Prevention has proclaimed community water fluoridation as one of the 10 great public health achievements of the 20th Century. Most States in the USA have fluoride in their drinking water. However, relatively recently, there has been some reconsideration among the scientific community about this material.

For full article: http://www.guyanachronicleonline.com/site/index.php?option=com_content&view=article&id=38142:fluoridated-toothpaste-fast-falling-out-of-favour-&catid=20:dentist-speaks&Itemid=19

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Dentists Could Screen 20 Million Americans for Chronic Physical Illnesses

Nearly 20 million Americans annually visit a dentist but not a general healthcare provider, according to an NYU study published in the American Journal of Public Health.

The study, conducted by a nursing-dental research team at NYU, is the first of its kind to determine the proportion of Americans who are seen annually by a dentist but not by a general healthcare provider.

This finding suggests dentists can play a crucial role as health care practitioners in the front-line defense of identifying systemic disease which would otherwise go undetected in a significant portion of the population, say the researchers.

For full article: http://www.medicalnewstoday.com/releases/239315.php

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How Cavity-Causing Microbes Invade Heart

Scientists have discovered the tool that bacteria normally found in our mouths use to invade heart tissue, causing a dangerous and sometimes lethal infection of the heart known as endocarditis. The work raises the possibility of creating a screening tool -- perhaps a swab of the cheek, or a spit test -- to gauge a dental patient's vulnerability to the condition.

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The identification of the protein that allows Streptococcus mutans to gain a foothold in heart tissue is reported in the June issue of Infection and Immunity by microbiologists at the University of Rochester Medical Center.

S. mutans is a bacterium best known for causing cavities. The bacteria reside in dental plaque -- an architecturally sophisticated goo composed of an elaborate molecular matrix created by S. mutans that allows the bacteria to inhabit and thrive in our oral cavity. There, they churn out acid that erodes our teeth.

The above story is reprinted from materials provided by University of Rochester Medical Center.

For Full article: http://www.sciencedaily.com/releases/2011/06/110627095650.htm

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New Device Set to Combat Fear of the Dentist's Drill

An innovative device which cancels out the noise of the dental drill could spell the end of people's anxiety about trips to the dentist, according to experts at King's College London, Brunel University and London South Bank University, who pioneered the invention.

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It is widely known that the sound of the dental drill is the prime cause of anxiety about dental treatment, and some patients avoid trips to the dentist because of it. This new device could help address people's fears and encourage them to seek the oral healthcare treatment they need.

The prototype device works in a similar way to noise-cancelling headphones but is designed to deal with the very high pitch of the dental drill. Patients would simply unplug their headphones, plug the device into their MP3 player or mobile phone, and then plug the headphones into the device, allowing them to listen to their own music while completely blocking out the unpleasant sound of the drill and suction equipment. The patient can still hear the dentist and other members of the dental team speaking to them but other unwanted sounds are filtered out by the device.

For full article: http://www.sciencedaily.com/releases/2011/01/110110053040.htm

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Male Cigarette Smokers More Likely to Need Root Canals

According to a recent report from the American Dental Association, males that smoke cigarettes are almost twice as likely to need root canals based on news reports about an extensive study listed to appear in the Journal of Dental Research in April 2006. 

For full article: http://dentistry.about.com/od/toothmouthconditions/a/malesmokers.htm

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Blood Thinners and Dental Care

Antiplatelet and Anticoagulant Agents and Dental Procedures

An increasing number of dental patients are taking “blood thinner” medications for various medical conditions. These drugs interfere with the body’s normal clotting (stopping blood flow) mechanism. There are two main processes by which the body normally forms a blood clot at the site of tissue injury. The first involves small blood cells called platelets which clump together at the wound to form a mechanical plug. This plug slows the flow of blood through the vessel and forms a matrix for the next phase of coagulation. During coagulation chemicals in the blood interact with each other to fill in the spaces between the platelets, stabilize the clot, and make it more solid until the process stops the bleeding.

Antiplatelet agents such as aspirin, Ticlid (ticlopidine), and Plavix (clopidogrel) target the first phase of clot formation by preventing platelets from sticking together and adhering to blood vessels. These agents do this by creating permanent changes in the platelets which last throughout the lifetime of the platelet (7-10 days). These effects can only be countered as the body produces new platelets that have not been exposed to the drug.

For full article: http://www.aaom.com/patients/blood-thinners-and-dental-care/

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Dried Licorice Root Fights the Bacteria That Cause Tooth Decay and Gum Disease

Scientists are reporting identification of two substances in licorice -- used extensively in Chinese traditional medicine -- that kill the major bacteria responsible for tooth decay and gum disease, the leading causes of tooth loss in children and adults. In a study in ACS' Journal of Natural Products, they say that these substances could have a role in treating and preventing tooth decay and gum disease.

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Stefan Gafner and colleagues explain that the dried root of the licorice plant is a common treatment in Chinese traditional medicine, especially as a way to enhance the activity of other herbal ingredients or as a flavoring. Despite the popularity of licorice candy in the U.S., licorice root has been replaced in domestic candy with anise oil, which has a similar flavor. Traditional medical practitioners use dried licorice root to treat various ailments, such as respiratory and digestive problems, but few modern scientific studies address whether licorice really works. (Consumers should check with their health care provider before taking licorice root because it can have undesirable effects and interactions with prescription drugs.) To test whether the sweet root could combat the bacteria that cause gum disease and cavities, the researchers took a closer look at various substances in licorice.

For full article: http://www.sciencedaily.com/releases/2012/01/120104115106.htm

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Premature Children Have Smaller Teeth

The size of teeth in premature children is smaller than that of children who were full-term, according to a study by the Faculty of Odontology at Malmö University in Sweden.

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Our knowledge about premature children, and their physical and mental development as they grow up, is constantly growing. In recent years several studies of children's dental health have been published by researchers at the Faculty of Odontology in Malmö. Liselotte Paulsson-Björnsson, a specialist in orthodontics, has studied 80 children born before week 33 of pregnancy.

"We have examined how their teeth are developing and, among other things, we've looked at their bites. We've also checked their need for orthodontic adjustments and found that it is greater than in the control group, children born at full term," she says.

For full article: http://www.sciencedaily.com/releases/2011/10/111027082747.htm

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Unhealthy Gums Increase Risk of Premature Delivery

Gum disease can do more than affecting just your gums. It can increase the risk of diabetes, cardiovascular disease and premature delivery. The following is the conclusion arrived at a conference on periodontal disease, held at New York.

Participants at the conference highlighted the accumulating evidence regarding increased risk of serious illness in association with gum disease. They further reflected the need for a collaborative work between both dentists and medical health professionals.


Read more: Unhealthy Gums Increase Risk Of Premature Delivery | MedIndia http://www.medindia.net/news/view_news_main.asp?x=8099#ixzz1ihBajqHi

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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.

DNA Vaccines Show Promise in Preventing Dental Caries

In a report on a preclinical investigation titled "Flagellin Enhances Saliva Ig A Response and Protection of Anti-caries DNA Vaccine," lead author Wei Shi, Wuhan Institute of Virology, Chinese Academy of Sciences, and his team of researchers demonstrate that anti-caries DNA vaccines, including pGJA-P/VAX, are promising for preventing dental caries. However, challenges remain because of the low immunogenicity of DNA vaccines.

In this study, Shi and team used recombinant flagellin protein derived from Salmonella as mucosal adjuvant for anti-caries DNA vaccine (pGJA-P/VAX) and analyzed the effects of Salmonella protein on the serum surface protein immunoglobulin G and saliva surface protein immunoglobulin A antibody responses, the colonization of Streptococcus mutans (S. mutans) on rodent teeth, and the formation of caries lesions. The results showed that Salmonella promoted the production of surface protein immunoglobulin G in serum and secretory immunoglobulin A in saliva of animals by intranasal immunization with pGJA-P/VAX plus Salmonella.

This study is published in the Journal of Dental Research, the official publication of the International and American Associations for Dental Research (IADR/AADR).

For full article: http://www.sciencedaily.com/releases/2011/10/111025143526.htm

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Teeth Crowded in Seniors, as Jaws Shrink

The size of our jaws decreases with age. This is shown in a unique study from the Faculty of Dentistry at Malmö University that followed a cohort of dentists throughout their adult lives.

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The unique study started in 1949. Plaster molds were made of the jaws of dental students, who were then in their twenties. Ten years later the procedure was repeated, and in 1989, forty years after the first molds, a final round was performed. On that occasion the researchers were in touch with 18 of the original 30 participants.

"We found that over these forty years there was less and less room for teeth in the jaw," says Lars Bondemark, professor of orthodontics, who analyzed the material together with his colleague Maria Nilner, professor of clinical bite physiology at the College of Dentistry, Malmö University.

Full article at: http://www.sciencedaily.com/releases/2011/10/111031114809.htm

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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.

Bad dental health can lead to pneumonia

The Dental Health Foundation has warned that poor oral hygiene could cause the respiratory infection after research found a link between bacteria in the mouth and the lung disease.

Dr Samit Joshi of Yale University School of Medicine found changes in bacteria in the mouth preceded the development of pneumonia.

He concluded that this process “suggests that changes in oral bacteria play a role in the risk for developing pneumonia".

Pneumonia is thought to affect more than 620,000 people in the UK and claims the lives of around five per cent of those who contract the disease.

Although further research is required to determine the exact relationship between oral health and pneumonia, it is not the first time the two diseases have been linked.

For full article: http://www.telegraph.co.uk/health/healthnews/8979191/Bad-dental-health-can-lead-to-pneumonia-Yale-study-suggests.html

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Anticoagulant Patients - Changes to Tooth Extraction

It has been recommended that patients with cardiovascular problems undergoing tooth extraction should be given extra treatment to prevent excessive bleeding.

Problems arise with such patients due to the anticoagulant medication thinning the blood, which can lead to a higher risk of bleeding during tooth removal procedures.

The ‘Journal of Oral Implantology’ carried out research to study the effectives of leukocyte and platelet-rich fibrin material, which is often used by dentists to enhance healing in dental tissue.

For full article: http://www.cosmeticdentistryguide.co.uk/news/changes-to-tooth-extraction-for-anticoagulant-patients-9373

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Oral Cancer Screenings

According to a new study in the oral cancer field, more and more patients are asking for mouth cancer checkups in the dental offices.

As many as 88% of dental patients want to have their mouth checked for possible signs that indicate cancerous complications.

However, it has also been reported that only as little as 14% of dental patients say that their dentist has informed them about the symptoms and risks of oral cancer disease.

Even though 90% of the dentists check their patient’s mouth for possible oral cancer signs, very few of them actually discuss this particular issue with their patients directly.

For full article: http://worldental.org/dental-news/dental-patients-cancer-screenings/5381/

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Laser Treatment for Gum Disease

If you’ve got periodontal disease and are dreading the gum grafts or suturing, there is now a less painful way of dealing with the problem. The dentist can use a laser to remove any bacteria and diseased tissue and this may mean less bleeding, swelling and pain for the patient.

The laser is also used to close up "pockets" by sealing the gums to the teeth. The procedure is done with a local anaesthetic.

Laser therapy is safe when used correctly and was approved by the FDA in 2004, so if you are considering having this done, choose a dentist who has experience in this technique.

Laser Therapy May Help Re-grow Gum Tissue

Research carried out at Louisiana State University found that the laser treated gums showed evidence of growing new connective tissue in six patients who had undergone the procedure. All six patients had one tooth treated via laser and one tooth treated by scalpel and suturing.

For full article: http://www.empowher.com/dental-amp-oral-health/content/laser-treatment-gum-disease

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Periodontal Disease Puts Elderly at Risk for Kidney Problems

Older adults with more gum inflammation are at risk for kidney problems, Japanese researchers say.

The study included 317 people. They were all 75 years old. At the start of the study, each person had an oral exam. The researchers calculated how much of each person's gum tissue was inflamed.

People with periodontal disease have inflammation of the gums. This is the body's reaction to bacteria in the plaque that builds up on teeth below the gum line.

The people were followed for 2 years. During that time, 45 of them developed kidney problems.

Full article at: http://www.simplestepsdental.com/SS/ihtSS/r.WSIHW000/st.32571/t.32571/pr.3/d.dmtNewsContent/c.1415718.html

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Should Dentist Screen Patients for Physical Illnesses?

NYU study concludes that dentists could screen 20 million Americans for chronic physical illnesses

An opportunity to identify diabetes, hypertension, and other chronic diseases

December 15, 2011 -- Nearly 20 million Americans annually visit a dentist but not a general healthcare provider, according to an NYU study published today in the American Journal of Public Health.

The study, conducted by a nursing-dental research team at NYU, is the first of its kind to determine the proportion of Americans who are seen annually by a dentist but not by a general healthcare provider.

This finding suggests dentists can play a crucial role as health care practitioners in the front-line defense of identifying systemic disease which would otherwise go undetected in a significant portion of the population, say the researchers.

For full article: http://www.eurekalert.org/pub_releases/2011-12/nyu-nsc121211.php

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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.

Early Detection of Oral Cancer with Velscope

According to The Oral Cancer Foundation, someone dies from oral cancer every hour of every day in the United States alone. This cancer, found in the mouth, lips or throat, is often highly curable if diagnosed and treated early. Unfortunately, in its early stages, oral cancer can go unnoticed.

Those at high risk for oral cancer include tobacco users, African-American men and heavy drinkers, but anyone can develop oral cancer. According to the Oral Cancer Consortium, 25 percent of people diagnosed with oral cancer have no risk factors. Studies have also determined there may be a link between HPV (human papilloma virus) and oral cancer.

For full article: http://dentistry.about.com/od/toothmouthconditions/a/Velscope.htm

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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.

Gum Disease and Your Overall Health

Often taken for granted, the monotonous task of brushing and flossing our teeth daily has never been more important in order to avoid gum disease and the risks gum disease place on our overall health. It has been estimated that 75% of Americans have some form of gum disease, which has been linked to serious health complications and causes various dental problems that are often avoidable.

Full article: http://dentistry.about.com/od/issuesandemergencies/a/importantbrush.htm

Study Sheds Light on Jaw Pain Disorders

The findings, published in the November issue of the Journal of Pain, provide insights into potential causes of temporomandibular joint disorders (TMJD), and should lead to new methods of diagnosing facial pain conditions, predicting who will be susceptible to them, and new treatment approaches, say the authors.

"There is a real difference. People with TMJ are more sensitive than those without TMJ on parts of the body other than the jaw," says co-author Joel Greenspan, PhD, professor and chair of the School''s Department of Neural and Pain Sciences. "To us it means the nervous system for interpreting pain information is now altered. We think that general heightened pain sensitivity is part of the chronic pain problem."

Read more: Recent Study Sheds Light on Jaw Pain Disorders | MedIndia http://www.medindia.net/news/Recent-Study-Sheds-Light-on-Jaw-Pain-Disorders-93265-1.htm#ixzz1gcobT82w

Pain-Free Repair of Teeth with New Peptide Fluid

24 August 2011

Researchers at the University of Leeds have discovered a pain-free way of tackling dental decay
that reverses the damage of acid attack and re-builds teeth as new. The pioneering treatment promises to transform the approach to filling teeth forever... Read more....

Osteoporosis Medications Linked to Jaw Bone Disease

Certain osteoporosis medications, called bisphosphonates, have possibly been linked to osteonecrosis of the jaw, a rare and serious disease that can cause rigorous destruction of the jawbone. Common oral bisphosphonates taken for osteoporosis are Fosomax, Boniva, Actonel, Didronel and Skelid. Common bisphosphonates given intravenously for osteoporosis are Bonefos, Aredia and Zometa.

Osteoporosis is a bone-weakening disease that affects millions of people. The National Osteoporosis Foundation estimates that osteoporosis is a health threat for 55% of people ages 50 and older or about 44 million Americans. 80% of the 10 million Americans estimated to have osteoporosis are women. According to The National Osteoporosis Foundation, women are four times more likely than men to develop osteoporosis.

Full article at: http://dentistry.about.com/od/toothmouthconditions/a/Osteonecrosis.htm

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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.

Dental health linked to dementia risk

People who keep their teeth and gums healthy with regular brushing may have a lower risk of developing dementia later in life, according to a U.S. study. Researchers at the University of California who followed nearly 5,500 elderly people over an 18-year-period found that those who reported brushing their teeth less than once a day were up to 65 percent more likely to develop dementia than those who brushed daily.

For full article: http://www.reuters.com/article/2012/08/21/health-dementia-teeth-idUSL4E8JL00020120821

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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.

Rolls Royce of Mouthguard Line Provides Maximum Injury Protection

As students head back to school this fall, many will end up as part of the 15 million dental injuries and 5 million cases of traumatically lost teeth that occur every year, according to the National Youth Sports Safety Foundation (NYSSF).

However, many students choose not to wear a mouthguard for a variety of reasons, according to Brian J. Kenyon, DMD, lead author of a report that appeared in the July/August 2005 issue of General Dentistry, the Academy of General Dentistry 's (AGD) clinical, peer-reviewed journal.

For full article: http://www.knowyourteeth.com/infobites/abc/article/?abc=M&iid=313&aid=1268

Dentist Should Advise Vegetarians on Good Oral Health

Health concerns about fat and cholesterol have prompted many people to become vegetarians, and the nutritional deficiencies that can sometimes result may reveal themselves during dental exams.

Academy of General Dentistry spokesperson Ludwig Leibsohn, DDS says he usually asks patients if they adhere to vegetarian or other special diets.

For full article: http://www.knowyourteeth.com/infobites/abc/article/?abc=n&iid=315&aid=1273

American Heart Association reports that it’s OK to limit pre-dental procedure Antibiotics to high risk Heart Patients

Dallas, TX – The incidence of infective endocarditis among dental patients in Olmsted County, MN did not increase after new guidelines called for giving preventive antibiotics before dental procedures only to those at greatest risk of complications, according to independent research published in Circulation, an American Heart Association journal.

Infective endocarditis Description: External link is a bacterial infection of the heart lining, heart valve or blood vessel.

For full article: http://www.clarksvilleonline.com/2012/07/13/american-heart-association-reports-that-its-ok-to-limit-pre-dental-procedure-antibiotics-to-high-risk-heart-patients/

Oral Cancer Virus Associated With Gum Disease

After the discovery that severe gum disease can be associated with a higher risk of head and neck cancer cases caused by the Human Pailloma Virus (HPV), The British Dental Health Foundation aims to educate the public on good oral health. Researchers discovered that in comparison with patients with HPV-negative tumors, those with HPV-positive tumors had a considerably higher bone loss, which is a key element for developing severe gum disease.

According to the latest figures, over 6,000 people in the UK have oral cancer, a disease that claims nearly 2,000 lives. The incident rates of oral cancer due to HPV are increasing, with experts indicating that within a decade, HPV may rival tobacco use as the main cause for oral cancer. Other risk factors for oral cancer include smoking, excessive drinking and poor diet.

For full article: http://www.medicalnewstoday.com/articles/247497.php

Swimmers Risk Stained Smiles, Chipped Teeth

Competitive swimmers may be at risk for developing yellowish-brown or dark-brown stains on their teeth, reports the Academy of General Dentistry (AGD), an organization of general dentists dedicated to continuing dental education.

  

Athlete swimmers, who often swim laps more than six hours a week, expose their teeth to large amounts of chemically treated water. Pool water contains chemical additives like antimicrobials, which give the water a higher pH than saliva, causing salivary proteins to break down quickly and form organic deposits on swimmer's teeth.

 

For full article: http://www.knowyourteeth.com/infobites/abc/article/?abc=S&iid=331&aid=1324

The new discovery that cavity-proofs your teeth

Kiss the dental drill goodbye: A pair of scientists discovers a revolutionary molecule called Keep 32 that kills all the nasty germs responsible for tooth decay

posted on July 11, 2012, at 7:19 AM

 

Keep 32 is a molecule that fights off the bacteria that causes tooth decay. It could soon be added to toothpastes and candies to keep you out of the dentist chair.

If you'd sooner sit through another rendition of "Call Me Maybe" than visit the dentist office, take heart: Scientists have discovered a new molecule called Keep 32 that kills all the nasty cavity-causing germs in your mouth, thereby making your trips to the dreaded dental chair less frequent and less terrifying. Here, a brief guide to the breakthrough:

For full article: http://theweek.com/article/index/230341/the-new-discovery-that-cavity-proofs-your-teeth

New mouthwash targeting harmful bacteria may render tooth decay a thing of the past

A new mouthwash developed by a microbiologist at the UCLA School of Dentistry is highly successful in targeting the harmful Streptococcus mutans bacteria that is the principal cause tooth decay and cavities.

In a recent clinical study, 12 subjects who rinsed just one time with the experimental mouthwash experienced a nearly complete elimination of the S. mutans bacteria over the entire four-day testing period. The findings from the small-scale study are published in the current edition of the international dental journal Caries Research.

Full article at: http://www.dentistry.ucla.edu/news/new-mouthwash-targeting-harmful-bacteria-may-render-tooth-decay-a-thing-of-the-past

Does more dental plaque mean higher chances of dying from cancer?

By Denise Mann
HealthDay Reporter

TUESDAY, June 12 (HealthDay News) -- The gnarly plaque lurking on your gums and teeth may increase your chances of dying from cancer, new research suggests.

Many studies have linked oral health to chronic illnesses such as heart disease. This latest research, however, suggests that people who have more plaque on their teeth and gums are more likely to die prematurely from cancer.

http://www.cbs8.com/story/18764762/does-more-dental-plaque-mean-higher-chances-of-dying-from-cancer

Screening For Alcohol Abuse At The Dentist's

In a report published in the April edition of the Royal College of Surgeon's Dental Journal, health experts warn that excessive alcohol consumption causes mouth cancer and dental disease. According to the experts, in order to tackle this as fast as possible, screening and treatment for alcohol abuse is critical.

The paper is entitled "Alcohol misuse: screening and treatment in primary dental care."

For full article: http://www.medicalnewstoday.com/articles/243819.php

Study Links Oral Bacteria and VAP

Every day in emergency rooms across America, hospital staff must insert plastic ventilation tubes into the airways of their sick or severely injured patients to keep them breathing. Unfortunately for those who have the tubes in place for 48 hours or longer, at least one in 10 will develop a bacterial infection in their lungs. In some cases, the resulting pneumonia will prove fatal. In others, the infection – known as ventilator-associated pneumonia, or VAP - will prolong the patient’s hospital stay from two weeks to a month on average, often resulting in extra hospital fees of $40,000 or more.

For complete article: http://www.nidcr.nih.gov/Research/ResearchResults/ScienceBriefs/Archive/archive2008/December/VAP.htm

Study Warns of Killer Bugs in Dentures

A new study has warned that dentures, despite its clean look, could be teeming with killer bugs like MRSA.

Researchers have advised that putting infected false teeth in a microwave oven for three minutes makes them safe.

Dentures are known to get covered with thin layers of bacteria called biofilms, which can lurk until they are breathed into the lungs.

Nearly 20 million people in the U.S. wear full or partial dentures often infected with MRSA or drug-resistant staphylococcus aureus bacteria.

Read more: Study Warns of Killer Bugs in Dentures | MedIndia http://www.medindia.net/news/study-warns-of-killer-bugs-in-dentures-99839-1.htm#ixzz1v30B32vq

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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.

Periodontal Disease in Senior Men

In the June issue of the journal Gerodontology, NIDCR grantees and colleagues provide some interesting new data on the periodontal health of older men. The data are from the MrOS dental study, a component of the Osteoporotic Fractures in Men (MrOS) study that is under way at research sites in Portland, Oregon and Birmingham, Alabama. In the reported study, dentists and hygienists offered half-mouth periodontal examinations to 1,347 study participants. The men were mostly Caucasian, averaged 75 years of age, and nine out of 10 retained their natural teeth. But, as the authors noted, they formed an especially unique research cohort. The men were highly educated, largely in good to excellent health, most visited the dentist annually, and 37 percent had never smoked.

For complete article: http://www.nidcr.nih.gov/Research/ResearchResults/ScienceBriefs/Archive/SNIB2009/June/PerioSeniorMen.htm

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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.

Early Success Using Saliva to Detect Oral Cancer

Scientists funded by the National Institute of Dental and Craniofacial Research, part of the National Institutes of Health, reported today taking a major step forward in using saliva to detect oral cancer. As published in the current issue of Clinical Cancer Research, the scientists found they could measure for elevated levels of four distinct cancer-associated molecules in saliva and distinguish with 91 percent accuracy between healthy people and those diagnosed with oral squamous cell carcinoma.

This so-called "proof-of-principle" study marks the first report in the scientific literature that distinct patterns of "messenger RNA" not only are measurable in saliva but can indicate a developing tumor. Messenger RNA (mRNA) is the molecular intermediate between gene and protein, serving as a chemical record that an individual gene has been expressed.

According to David Wong, D.M.D., D.M.Sc., a scientist at the University of California at Los Angeles (UCLA) School of Dentistry and senior author on the paper, it may be possible with further refinement of the test, possibly by including additional cancer-linked mRNAs, to attain the necessary 99 to 100 percent accuracy of commercial diagnostic tests for oral squamous cell carcinoma, the sixth most common cancer in the United States. Wong noted that currently no biochemical or genetic diagnostic tests are commercially available for oral cancer.

For full article: http://dentistry.about.com/gi/dynamic/offsite.htm?zi=1/XJ/Ya&sdn=dentistry&cdn=health&tm=12&gps=132_2_1366_648&f=20&tt=14&bt=0&bts=0&zu=http%3A//www.nih.gov/news/pr/dec2004/nidcr-20.htm

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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.

Autofluorescence aids early oral cancer detection

By DrBicuspid Staff

June 26, 2012 -- Autofluorescence imaging and spectroscopy can assist clinicians in identifying early oral cancer and advanced dysplasia in high-risk individuals, according to a study presented last week at the International Association for Dental Research meeting in Brazil.

In an ongoing clinical protocol, researchers from the University of Texas MD Anderson Cancer Center, Rutgers University, Rice University, and University of Texas Dental Branch at Houston obtained autofluorescence imaging and depth-sensitive spectroscopy data of patients with potentially malignant oral lesions and/or a history of oral cancer.

For full article: http://www.drbicuspid.com/index.aspx?Sec=sup&sub=img&pag=dis&ItemID=310876&wf=47

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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.

Xylitol Syrup Helps to Prevent Childhood Tooth Decay

One hundred and forty years ago this December, an Ohio dentist named William Sample received the first patent on chewing gum. His recipe: rubber, sugar, licorice, and charcoal. Although Sample never actively pursued the patent, many subsequently wiled away a precious hour adding and subtracting ingredients to his crude, chewy concoction. Among them was Walter Dierner, an accountant in the 1920s for the Fleer Chewing Gum Company in Philadelphia. When the 23-year-old Dierner wasn’t crunching numbers, he dabbled on the side with his homespun chewing gum recipes. One day Dierner got his latest recipe wrong and “ended up with something with bubbles.” As Dierner recalled, his colleagues at Fleer recognized the novelty of “bubble gum” and launched plans to manufacture it. To show just how different bubble gum was from regular chewing gum, Dierner and company decided to give it a different look. The men dashed off to find a bottle of food coloring to do the trick, and by chance the only one to be found in the entire factory was pink. The rest is history.

For complete article: http://www.nidcr.nih.gov/Research/ResearchResults/ScienceBriefs/Archive/SNIB2009/July/Xylitol.htm

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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.

Researchers Find Joint Failures Potentially Linked To Oral Bacteria

The culprit behind a failed hip or knee replacements might be found in the mouth. DNA testing of bacteria from the fluid that lubricates hip and knee joints had bacteria with the same DNA as the plaque from patients with gum disease and in need of a joint replacement.

This study is one of many coming from the Case Western Reserve University School of Dental Medicine that have linked oral bacteria to health problems when they escape from the mouth and enter the blood.

For full article: http://www.medicalnewstoday.com/releases/244295.php

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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.

Gum Disease in Elderly Linked to Low Protein Levels

Low levels of a protein known as Del-1 may be the cause of gum diseases in older people according to a new study published in the journal Nature Immunology.
br/> Researchers from the Queen Mary University of London conducted the study on a group of young and old mice and found that low levels of Del-1 in older mice led to severe gum disease and bone loss.
<br/> <br/>Del-1 has been found to make the immune system prevent white blood cells from sticking to and attacking the mouth tissue.
<br/>,br/> Read more: Gum Disease in Elderly Linked to Low Protein Levels | MedIndia http://www.medindia.net/news/gum-disease-in-elderly-linked-to-low-protein-levels-100293-1.htm#ixzz1v2zRIqzJ

Dentin Grows More Brittle With Age

Just about everyone knows that our bones grow more brittle and susceptible to fracture with age. But bones aren’t the only hard tissue in the body that might be a problem in our latter years. A number of studies indicate that dentin, the load-bearing core of our teeth located below the enamel, tends to become brittle and fracture more easily with age, potentially leading to the expensive repair or extraction of an otherwise healthy tooth. The problem has been poorly appreciated for centuries – and with good reason. Until a generation ago, most seniors already had lost most or all of their natural teeth by their retirement years. With more seniors now keeping their teeth for a lifetime, dentists have begun to ask why and how dentin fractures occur and whether anything can be done to prevent the problem.

For complete article: http://www.nidcr.nih.gov/Research/ResearchResults/ScienceBriefs/Archive/SNIB2009/September/Dentin.htm

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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.

Periodontal Disease Could Be Treated With Fish Oil Supplements

Periodontitis, inflammation of the tissue surrounding the teeth, affects more than half of adults and is linked to an increased risk of stroke and other heart problems. To evaluate whether fish oil supplementation could be an adjunct therapy for periodontitis, Dr. Alison Coates from the University of South Australia and colleagues from the School of Dentistry at University of Adelaide in Australia reviewed evidence from eight unique studies that involved humans.

Their review of these studies showed that improvements in clinical measures were common in all studies, but were scientifically significant in two that used a combination of fish oil and aspirin. Although this is not conclusive evidence, intake of fish oil is recommended for health benefits beyond the teeth.

For full article: http://www.medicalnewstoday.com/releases/244541.php

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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.

Heart Disease and Tooth Loss

The study was conducted by state health agencies and was assisted by the Centers for Disease Control and Prevention. The Behavioral Risk Factor Surveillance System survey conducted between 1999 to 2002, included more than 40,000 adults aged 40 to 79, from 22 different states.

Even though smoking is linked to oral cancer, heart disease, gum disease and tooth loss, this study shows a significant connection between heart disease and tooth loss among participants in the age group of 40 to 59 who have never smoked.

For full article: http://dentistry.about.com/od/dentalhealth/a/toothloss.htm

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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.

Immune Peptide Shows Potential to Help Diagnose Oral Cancer

A team of NIDCR supported scientists discovered something quite interesting about cultured oral keratinocytes, cells that form the lining of the mouth and its soft tissues. The scientists confirmed that when pathogens challenge oral keratinocytes, these cells produce a variety of short antimicrobial peptides called β-defensins. What made the discovery interesting is that the β-defensins were differentially expressed when exposed to different immune signaling molecules. The implication being, not all β-defensin responses are the same. This finding matched up well with the many tasks that these peptides perform, from serving as the keratinocyte’s first line of defense to signaling nearby white blood cells to attack an invading pathogen. The finding also made sense on the DNA level. Defensins arise from 28 putative DNA coding regions that could be variably transcribed to suit the cell’s immediate needs. As members of the group later wrote, “This heterogeneity suggests that different phenotypic profiles exist that may affect an individual’s susceptibility or resistance to disease.”

For complete article: http://www.nidcr.nih.gov/Research/ResearchResults/ScienceBriefs/Archive/SNIB2009/September/Peptide.htm

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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.

ldhood Dental Problems Linked To General Health Problems Later On?

The University of Queensland Children's Nutrition Research Center at the School of Medicine and the School of Dentistry are looking for volunteers aged two, six and ten years for a new study, which aims to establish whether children may be changing their diets to eat unhealthy food because of dental problems and therefore submitting themselves to a higher risk of obesity and chronic disease in later life.

The researchers are particularly interested in recruiting children that were born prematurely, given that research has provided evidence that pre-term children are more likely to experience feeding and dental problems compared with children born at full term. Pre-term children also tend to have a higher risk of chronic diseases, like type 2 diabetes and cardiovascular disease in later life.

For complete article: http://www.medicalnewstoday.com/articles/244781.php

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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.

Rapid Test for Sjögren’s Syndrome

A team of NIDCR scientists reported in August that an experimental laboratory test called LIPS had correctly identified a key antibody associated with primary Sjögren’s syndrome three out of four times and with perfect accuracy. These data represented a significant improvement over the sensitivity and specificity of today’s standard ELISA assays. Now, the scientists report in the October issue of the Journal of Translational Medicine that this two-hour test just got a whole lot quicker. The scientists streamlined the assay’s two one-hour incubation steps to five minutes each. As the author’s reported, their quicker technique called QLIPS “includes a 5 minute set-up, two five-minute incubation steps, 10 minutes of washing and reading of the [testing] plate with a luminometer” for the results. Total testing time: About 25 minutes. Today’s ELISA tests typically range from five hours to a day to complete.

For complete article: http://www.nidcr.nih.gov/Research/ResearchResults/ScienceBriefs/Archive/SNIB2009/October/LIPS.htm

Gum Disease Linked to Pancreatic Cancer

A new study from Harvard has linked gum disease, also known as periodontal disease, to pancreatic cancer. Pancreatic cancer has been named as the fourth leading cause of cancer deaths in the United States. According to the Harvard School of Public Health , more than 30,000 Americans are expected to lose their lives to pancreatic cancer this year.

While there have been many studies documenting the link between poor oral hygiene and other medical problems, such as heart disease and stroke, this is the first study to find a solid link that gum disease could actually increase the risk of pancreatic cancer.

For full article: http://dentistry.about.com/od/toothmouthconditions/a/pancreatic.htm

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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.

Sports and Energy Drinks Cause Permanent Tooth Damage

Consumption of sports and energy drinks cause irreversible damage to teeth, say researchers.

And energy drinks are twice as likely to destroy enamel than sports drinks.

"Young adults consume these drinks assuming that they will improve their sports performance and energy levels and that they are 'better' for them than soda," said Poonam Jain, BDS, MS, MPH, lead author of the study.

Read more: Sports and Energy Drinks Cause Permanent Tooth Damage | MedIndia http://www.medindia.net/news/sports-and-energy-drinks-cause-permanent-tooth-damage-100786-1.htm#ixzz1v2ySIBLS

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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.

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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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.

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

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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.

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

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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.

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.

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.

Study Warns of Killer Bugs in Dentures

A new study has warned that dentures, despite its clean look, could be teeming with killer bugs like MRSA.

Researchers have advised that putting infected false teeth in a microwave oven for three minutes makes them safe.

Dentures are known to get covered with thin layers of bacteria called biofilms, which can lurk until they are breathed into the lungs.

Nearly 20 million people in the U.S. wear full or partial dentures often infected with MRSA or drug-resistant staphylococcus aureus bacteria.

Read more: Study Warns of Killer Bugs in Dentures | MedIndia http://www.medindia.net/news/study-warns-of-killer-bugs-in-dentures-99839-1.htm#ixzz1sE115MTb

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.