Dental Research Finds
an Experimental Plasma Probe to Battle Biofilm
June 11th, 2009
At USC, a research team recently made an interesting and promising
development. Plasma, the fourth stage of matter, can be used at
room temperature to destroy. Exactly how plasma eradicates biofilm
isn't clear. However, Parish Sedghizadeh, contributing researcher,
assistant professor of clinical dentistry, and Director of the USC
Center for Biofilms, thinks that oxygen free radicals may disturb
biofilm's cellular membranes. A single-atom form of oxygen, called
atomic oxygen, appears to be responsible for fighting the bacteria,
which occur in complex colonies within biofilm. Because these colonies
are protected by a "slimy matrix," biofilm is impervious
to traditional antibiotic therapy.
The nanosecond pulsed plasma dental probe can treat hard-to-reach
areas, which makes it highly effective. Under a scanning electron
microscope, evidence showed that plasma therapy produced "near
pristine surfaces" in extracted teeth's canals. Biofilm is
responsible for many oral infections, and can also pose problems
in other areas of the body. Ultimately, researchers hope the new
finding can translate to medical applications, as well as dental
Stem Cells from Wisdom
Teeth Save Lives
June 4th, 2009 · No Comments
This video shows us Megan Brown, a young cancer survivor, who had
her wisdom teeth extracted. StemSave
will preserve Meagan's stem cells in case she needs them in the
future. Having already experienced life with cancer, she is taking
the simple precaution of stem cell preservation to improve her chance
of recovering should she become ill again. Stem cells can be used
in treating MS, Parkinson's, liver and heart disease, and many other
serious health problemS.
Find more videos like this on PennWell Dental Group
Old News? Not Quite.
December 12th, 2008 · No Comments
According to one DentalBlogs reader, the Philadelphia City Council
is scheduled to vote on the Mercury in Dentistry Bill tomorrow.
If passed, the bill will require that dentists must inform patients
(with a brochure) that amalgam fillings are 50% mercury and could
be hazardous to their health. Governments in Maine, New Hampshire,
and California are considering similar laws.
Of course, dentists use amalgam because it offers a less expensive
alternative to patients not interested in esthetic restorations.
DentalBlogs has addressed research that indicates the cost increase
to the general public and the potential adverse health risks for
those (especially children) who cannot afford composite resin fillings.
The ADA has deemed amalgams safe. Still, many dentists have voluntarily
chosen to place only composite resin fillings because of their esthetic
appearance and safety issues.
Some research indicates that amalgams cause
gray hair, affect hormones, cause
hair loss, gum disease, migraines, poor memory, depression, anxiety,
mental lethargy, chronic fatigue, eczema and asthma, arthritis,
backaches, kidney disease, Alzheimer's disease, Parkinson's disease,
MS, other neurological disorders - excuse me while I take a
breath - damages
DNA, alters structure of proteins, disrupts communication between
cells, induces free radical tissue damage, inhibits antioxidant
enzymes - and the list goes on.
Got Arthritis? Call
May 29th, 2009 · 2 Comments
The list of health problems associated with gum disease/periodontitis
goes on and on, and it's only getting longer. Most recently, scientists
have added rheumatoid arthritis to the list. They found that that
patients with rheumatoid arthritis and gum disease who undergo periodontal
therapy experience less arthritis pain, fewer swollen joints, and
reduced morning stiffness. The findings were reported in Journal
of Periodontology by researchers at Case Western Reserve University
School of Dental Medicine and Hospitals of Cleveland.
JOP held a workshop in 2008 on the body inflammation - periodontal
disease - systemic health connection.
Dr. Michael K. McGuire stated in no. 11 Vol. 79 of JOP, 2008:
There is growing evidence that inflammation can be transferred
from the oral cavity to other parts of the body (and vice versa),
explaining the possible association between periodontitis and other
chronic inflammatory conditions. As a clinician, I find this intellectually
interesting, but when I ask myself whether or not this shift from
an infection model to an inflammation model changes the way I treat
my patients, the answer is, "not really." But should it?
Have I been so busy in my daily practice that I missed something
The link between rheumatoid arthritis and periodontal disease has
long been assumed by many health professionals. For years now, treatment
of inflammation with antibiotics, as well as extracting infected
teeth, have made rheumatoid arthritis patients feel better. The
new research lends legitimacy to the assumption.
to visit MedicalNews.com for more information about the study.
Occurence of Throat
Cancer Higher in "Very" Hot Tea Drinkers
March 30th, 2009 · No Comments
In Iran, the Golestan Province to be specific, folks drink only
two beverages - water and tea. When they drink tea, they drink it
hot - really hot. An ABC article posted last week tells us that
in this region of Iran, people have a high esophageal cancer rate.
A study was performed on 871 Golestan Province residents - 300 of
whom had esophagel cancer - to find out why these folks were having
such a bad time. Factors considered in the study include drinking
"very hot" tea, smoking tobacco, and alcohol consumption.
The British Medical Journal reported the findings, which stated
that drinking "very" hot tea increases the risk for esophageal
cancer. The whole "hot tea" thing is what's hot in the
news this week, but other factors, inlcuding how people care for
their teeth, play a role in the high cancer statistics.
Other Factors that Contribute to Esophageal Cancer.
According to reseracher Reza Malekzadeh, director of the Digestive
Disease Research Center at Tehran University of Medical Sciences
in Iran, tea was the main, but not the only factor that contributes
to the high esophageal cancer rate in the Golestan Province. A bad
diet (not enough vegetables), not brushing teeth and taking care
of oral health, and the widespread poor socio-economic status contributed
to the problem, as well.
Drikning libations and smoking tobacco contribute to cancer because
of the chemical influence these substances have on the body. With
tea, only the temperature is a factor - not the chemical makeup
of tea or the type of tea. This leads to the assumption that coffee
or any hot beverage would produce similar results - higher cancer
rates. Because esophageal cancer is higher in Asia and South America,
the US has not recommended a screening fo the condition. Only when
symptoms are present will doctors perform esophageal tests. However,
in the US, most people do not drink their coffee or tea "very
What is VERY HOT Tea?
Under 149 degrees Farenheit is considered warm. Over 156 degrees
is considered hot, and at this temperature, the rate of esophageal
cancer doubles. Very hot tea, over 158 degrees, increases the potential
for cancer eight times. Wow! Most people cannot drink liquids this
hot, but residents of the Golestan Province were raised on "very
hot" tea and have grown accustomed to drinking it.