Poor dental health may predict reduced ability to leave one’s house / Testing toothpastes - toothbrushes / Company introduces world’s first smart floss dispenser / Presence of certain oral bacteria may indicate increased pancreatic cancer risk
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DTMEA_No.3. Vol.6_HT.indd
www.dental-tribune.me
Published in Dubai
May-June 2016 | No. 3, Vol. 6
Poor dental health may
predict reduced ability to
leave one’s house
By DTI
SENDAI, Japan: Researchers in Japan
have investigated the association
between poor dental health and being housebound in the elderly, and
found that having fewer teeth and
no dentures were associated with
future risk of being homebound,
especially in people aged 65–74. The
findings may have important implications for interventions that promote dental health and denture use
to prevent older people from becoming confined to their homes.
The longitudinal cohort study used
data of 2,035 men and 2,355 women
aged 65 and over who responded
to two postal surveys conducted in
2006 and 2010 and were not homebound, defined as leaving their
home less than once weekly, at baseline. After the four-year study period,
324 (7.4 per cent) of the respondents
were housebound.
With regard to dental status, the
researchers found that, overall, participants with fewer teeth were twice
as likely to be confined to the house
than those with more teeth were. Almost 10 per cent of the homebound
respondents had fewer than 20 teeth
and no dentures, about 9 per cent
had fewer than 20 teeth and dentures, and about 4 per cent had 20 or
more teeth.
However, such a significant association between being homebound and dental health was not
observed in participants aged 75
and over.
According to the researchers,
A study has found that poor dental health may be linked to future risk of being homebound.
several possible pathways may
(Photograph: pixabay/stevepb)
link dental health and being
bound to one’s home. For example, dental health, including loss The researchers concluded that fu- their risk of becoming housebound
of teeth, affects food choice and nu- ture intervention studies focused on in the future.
tritional intake, conversation, and improving dental health in order to
facial attractiveness. Therefore, poor prevent older persons in the Japa- The study, titled “Does poor dental
dental health could negatively influ- nese population being homebound health predict becoming homeence social activities, leading indi- are required to verify the findings. bound among older Japanese?”, was
viduals to isolate themselves from They suggested that improving the published online in 30 April in the
others. Being housebound in itself is rate of denture use among older peo- BMC Oral Health journal.
a barrier to access to dental care.
ple with fewer teeth could reduce
Testing toothpastes, toothbrushes
Improving dental hygiene products through virtual brushing
By DTUS
Designing toothpastes and toothbrushes is a time-consuming process
involving the production and testing
of numerous samples. Using a new
type of simulation, various parameters such as bristle shape and abrasive particle size can be modified
with just a click. This enables manufacturers to improve the quality of
new dental care products and bring
them to market more quickly.
When we wake up in the morning,
there is a fur-like coating on our
teeth: this is a biological film that
forms overnight. Over time, this can
lead to the development of caries —
which is why it is critical that we remove this “rug” using a toothbrush.
There is a large selection of dental
hygiene products on the market, including brushes whose bristles are
rounded, pointed, hard, and soft.
There are also brushes with bristles
of varying lengths. Until now, to determine which ones clean the most
thoroughly while doing as little damage to the tooth enamel as possible,
manufacturers have had to conduct
experiments. This was also the case
when selecting the right abrasive
particles to be used in toothpastes.
Various toothpaste formulations
had to be mixed and then tested on
artificial tooth enamel models — a
laborious task. Another drawback to
Freiburg, Germany. “With our procedure, manufacturers of dental hygiene products can determine the
cleaning effectiveness of each individual parameter in a fast, economical and reliable manner,” says IWM
scientist Dr. Christian Nutto. “Unlike
in real-world experiments, the individual parameters in the simulation
can be easily modified — be it the
size, shape and quantity of abrasive
particles in a toothpaste, or the material from which they are made, or the
shape and elasticity of the bristles.”
Simulated tooth brushing
Simulation of pressure distribution in suspensions of varying viscosities with
spherical abrasive particles as a toothbrush bristle rubs against tooth enamel:
The more viscous toothpaste suspension leads to greater abrasion on enamel.
Fig. 1: Lower viscosity (1 mPas). Fig. 2: Higher viscosity (20 mPas). Left-side images show pressure distribution in the suspension (a deeper red indicates higher pressure). Right-side images show stress input against the tooth enamel by
abrasive particles (a deeper red indicates greater abrasion). Images/Provided
by Fraunhofer IWM
this approach is that the brush, paste
and enamel can be analyzed only as a
complete system, which means that
manufacturers have a difficult time
determining which effects observed
in these experiments are derived
from which of the various parameters.
Help has arrived in the form of a new
type of simulation developed by researchers at the Fraunhofer Institute
for Mechanics of Materials IWM in
Researchers can increase the scope
of the experiments far beyond what
is possible in real-world testing, and
that makes a noticeable difference
in the quality of the products. What
effects do the shape and stiffness
of the bristles have when brushing? How do the different abrasives
or toothpaste viscosity affect the
enamel, and how do they affect their
intended target, the biofilm on the
teeth? Simulation testing can deliver
reliable answers to questions such as
these, and it does so long before the
manufacturer ever mixes the toothpaste.
Nutto relies on SimPARTIX® simulation software developed at the
IWM, which uses the Smoothed
Particle Hydrodynamics (SPH) particle simulation method. “We specify
Simulation of interaction between a toothbrush bristle and a suspension with spherical
abrasive particles.
characteristics for the abrasive particles such as density, shape and fill
factor,” he says. Even parameters for
the tooth enamel are included. The
virtual toothbrush bristle is then
rubbed over the tooth enamel, with
the simulation providing data on
how the scrubbing particles interact
with the elastic bristle. It also calculates cleaning effectiveness, as well
as the aggressiveness of the abrasives against the tooth enamel. Here,
the team from the Powder Technology, Fluid Dynamics group can vary
the speed at which the bristles pass
across the enamel as well as their
pressing force. The SimPARTIX team,
together with the Fraunhofer Institute for Algorithms and Scientific
Computing SCAI, designed an additional software tool to integrate the
particle simulation into standardized simulation programs.
But do the findings correspond to reality? The comparative experiments
ÿPage 2
[2] =>
DTMEA_No.3. Vol.6_HT.indd
2
hygiene tribune
Dental Tribune Middle East & Africa Edition | 3/2016
Tennis legend Martina
Hingis becomes Curaden
ambassador
By DTI
KRIENS, Switzerland: Curaden has
health care and promote Curaden’s
CURAPROX, swiss smile and megasmile brands.
named international tennis star
Martina Hingis its global ambassador. As part of the collaboration, Hingis, who became the youngest Grand
Slam champion of all time in 1996
and the youngest world No. 1 in 1997,
will help raise awareness about oral
Over the next three years, 35-yearold Hingis will make several major
appearances in her role as global
ambassador for Curaden and
CURAPROX at and alongside her
sporting commitments as the cur-
rent leading women’s doubles player, including teaming up with Swiss
tennis professional Roger Federer
at the Olympics in Rio de Janeiro in
Brazil.
Ueli Breitschmid, owner and CEO
of Curaden, said: “Martina Hingis is
our perfect match—she’s the ideal
fit for our company, which operates
in over 60 countries. That’s because
she’s a mature and credible ambassador who’s famous all over the world.
She’s an exceptionally talented
sportswoman with a strong personality and great self-reliance who will
help us spread the word about our
modern kind of oral health care in
the best possible way. Together, we
want to be the names on everyone’s
lips in the future.”
Curaden offers over 120 products
under the CURAPROX dental brand,
which is sold in 60 countries. Its oral
hygiene products are developed and
manufactured in partnership with
researchers, teachers and practitioners. Based in Kriens near Lucerne,
Curaden employs some 300 staff
across the world. In 2015, the company generated sales in excess of
CHF130 million (€118 million) and
manufactured over 28 million toothbrushes.
◊Page 1
M Y DA I L Y R IT UAL
Martina Hingis and her CS 5460.
Better health, higher success.
TOOTHBRUSHING.
IT’S A SERIOUS GAME.
MAKE IT A FUN ONE.
CS 5460
www.curaprox.com
VISIT AND WIN.
were conducted by Dr. Andreas
Kiesow and his staff at the Fraunhofer Institute for Microstructure
of Materials and Systems IMWS in
Halle as well as the MikroTribologie
Centrum µTC in Karlsruhe. In the
tests, a brush bristle was placed in a
fastener and brushed at a constant
speed across an artificial tooth enamel model onto which toothpaste had
been applied. It was concluded that
the simulation can precisely predict
how the toothpaste and bristles will
affect the tooth enamel. At a later
stage, it will also be able to predict
the effectiveness of the toothpaste
and brush at removing the biofilm
from teeth.
Abrasive particles are a key component of toothpastes and serve to mechanically remove plaque from the
teeth. But a good toothpaste should
not be overly abrasive, as over the
years the friction can damage the
enamel, which does not regenerate.
Furthermore, this damaging effect
is far more pronounced on the soft
dentine. For this reason, the representative body for dentists in Germany recommends that patients
with exposed root surfaces choose a
toothpaste with a low abrasive effect.
About Fraunhofer
Fraunhofer identifies itself as Europe’s largest application-oriented
research organization. Its research
efforts are geared to people’s needs:
health, security, communication,
energy and the environment. The
company designs products, and it
improves methods and techniques.
(Source: Fraunhofer)
[3] =>
DTMEA_No.3. Vol.6_HT.indd
PATIENT SENSITIVITY
CAN BE GONE
IN SECONDS.
BEFORE
Open tubules
AFTER
Closed tubules in
60 SECONDS
with Colgate®
Sensitive Pro-Relief™
Toothpaste*
COLGATE® SENSITIVE PRO-RELIEF™ WITH PRO-ARGIN™ TECHNOLOGY
PROVIDES INSTANT AND LONG-LASTING RELIEF.
Extensive scientific research has shown that Colgate® Sensitive Pro-Relief™ protects against the triggers
and causes of sensitivity, and is proven to occlude dentin tubules in 60 seconds.*
Finally, a way to quickly improve your patients’ satisfaction and comfort.
YOUR PARTNER IN ORAL HEALTH
www.colgateprofessional.com
*When toothpaste is directly applied to each sensitive tooth for 60 seconds.
Ayad F, Ayad N, Delgado
et al. J Clin
Dent. 2009;20(4):115-122.
RECOMMENDED
# E,BRAND
BRAND RECOMMENDED
1 BY DENTISTS BY DENTISTS
www.colgateprofessional.com
BRAND MOST USED BY DENTISTS
www.colgateprofessional.com
[4] =>
DTMEA_No.3. Vol.6_HT.indd
4
hygiene tribune
Dental Tribune Middle East & Africa Edition | 3/2016
Company introduces world’s first smart
floss dispenser
By DTI
PALO ALTO, Calif., USA: For prevention of dental disease, the American
Dental Association recommends
flossing at least once a day to help
remove plaque from interproximal
areas that cannot be reached with a
toothbrush. However, only a quarter
of people use dental floss on a regu-
lar basis. In order to address this issue
and improve oral health care, a U.S.
company has now introduced floss
time, a novel smart floss dispenser.
The patent-pending floss time can
easily be mounted to the bathroom
mirror or wall and automatically
dispenses 18 in. of floss at the push
of a button. After floss has been dispensed, the device starts a 90-second
flossing timer in the form of blueglowing quadrants that move clockwise around the circular light ring,
indicating how long the user should
floss each quadrant of his or her
mouth. Upon completion, floss|time
will light up with a blue smile. If not
used daily, an orange frown or reminder light cues the user that it is
time to floss again.
The device has a single- and dualuser mode and can thus be shared by
two people. It can also be individualized using animal snap-ons to make
flossing more appealing to children.
According to the inventors, the floss in the new device lasts for one year of daily flossing. (Photograph: floss|time)
The use of dental floss is generally
recommended in addition to daily
toothbrushing. Insufficient flossing has been associated with an increased risk of caries and periodontal
disease, which have been linked to
other serious health problems, including cardiovascular disease and
diabetes.
Floss time was created by a team of
designers, Ph.D.s and engineers. In
addition to the device’s functional
properties, the team paid great attention to its esthetic aspects, such
as elegant LED lightning. They believe that their invention will help
establish long-term flossing habits.
The group is currently raising money for the manufacture of floss|time
through the Kickstarter funding
platform, which will help finance the
first production run.
The funding initiative at Kickstarter
ends on Dec. 12 at 4 p.m. (CET).
More information about the dispenser can be found at www.flosstime.com.
Dental caries treatment
may prevent pneumonia in Parkinson’s patients
By DTI
KAOHSIUNG, Taiwan/KUALA LUMPUR, Malaysia: Pneumonia is a
common condition in patients with
Parkinson’s disease. A new study
that explored risk factors for pneumonia development has now found
that patients treated for dental caries had a reduced risk of pneumonia
compared with patients who had not
been treated.
The study included 2,001 participants newly diagnosed with Parkinson’s disease between 2000 and
2009. Over a mean follow-up period
of about six years, 19 per cent of the
patients were hospitalised for pneumonia. With regard to oral health
status, the researchers observed
that dental diseases were among
the most common co-morbidities.
About 48 per cent of the patients in
the study had dental caries and over
44 per cent periodontitis. Moreover,
the data analysis showed that the
incidence of pneumonia in patients
who had received treatment for
dental caries was lower. They thus
concluded that maintenance of good
oral hygiene and control of oral biofilm formation reduce the number
of potential respiratory pathogens,
thereby lowering the risk of pneumonia, especially in elderly men.
The researchers found that older patients, males in particular, patients
living in the northern, southern and
eastern regions of Taiwan, and patients with lower income had a higher risk of developing pneumonia.
For example, over 60 per cent of the
participants who developed pneumonia were men. Of the patients
hospitalised for pneumonia, about
95 per cent had a monthly income of
less than NT$30,000 (US$928).
The study, titled “Risk factors for
pneumonia among patients with
Parkinson’s disease: A Taiwan nationwide population-based study”,
was published on 27 April in the Neuropsychiatric Disease and Treatment
journal.
Smiles in London, York and Liverpool rated best
By DTI
LONDON, UK: Brits may not like to
show their smiles very often, according to research, but when it comes to
ranking them, most consider Londoners, Yorkers and Liverpudlians
to have the nicest smiles. All three
cities scored highest in a recent poll
commissioned by the Oral Health
Foundation as part of National Smile
Month.
Overall, the foundation asked 2,000
Brits where they thought the best
smiles in Britain are, out of 45 of
the country’s most populous urban
areas. While the capital and the two
northern cities came out top, smiles
in Salford, Wolverhampton and Lichfield were rated significantly lower.
from the truth,” remarked Chief
Executive of the Oral Health Foundation Dr Nigel Carter, OBE, on the
poll. “It shows that quantity is not
always related to quality and when
London residents do choose to smile
their grins are showing the rest of the
country the way forward.”
“London may have a reputation for
being a place that is very short on
smiles but this couldn’t be further
The survey findings were released
on the first day of National Smile
Month, the UK’s largest and long-
est running charity campaign initiative. Celebrated this year for the
40th time and held until 16 June,
it is aimed at increasing awareness
of the importance of oral health by
highlighting key messages, such as
the benefits of regular toothbrushing and visiting a dentist in order
to develop and maintain a healthy
mouth.
Thousands of individuals and or-
ganisations take part in the initiative
every year.
“A simple smile can make others
around you feel at ease. It is highly
contagious and plays such an important role in our lives that we should
make our oral health top priority,”
Carter added. “It is an incredibly powerful tool and worth remembering it
is one we all possess.”
[5] =>
DTMEA_No.3. Vol.6_HT.indd
Dental Tribune Middle East & Africa Edition | 3/2016
hygiene tribune
Presence of certain
oral bacteria
may indicate
increased pancreatic
cancer risk
Assessment of bacterial changes in the mouth could be used to determine individual risk of developing pancreatic
cancer. (Photograph: pixabay/stevpb)
By DTI
NEW YORK, USA: Researchers have
found that the risk of developing
pancreatic cancer is associated with
specific bacteria in the mouth. They
hope that the findings could enable earlier and more precise treatment of the disease, which is one of
the most common causes of cancer
death in both men and women and
results in more than 40,000 deaths
annually in the U.S. alone.
Other studies have shown that pancreatic cancer patients are susceptible to periodontal disease, cavities and poor oral health in general.
Therefore, the research team at the
NYU Langone Medical Center set out
to search for direct links between the
makeup of bacteria driving oral disease and subsequent development
of pancreatic cancer.
The researchers compared bacterial contents in mouthwash samples
from 361 American men and women
who had developed pancreatic cancer with samples from 371 people of
matched age, sex and ethnic origin
who did not. They found that men
and women whose oral microbiome
included Porphyromonas gingivalis,
a major contributor to periodontal
disease, had an overall 59 percent
greater risk of developing pancreatic
cancer than those whose microbiome did not contain the bacterium.
Similarly, people with oral microbiomes containing Aggregatibacter
actinomycetemcomitans, which has
been associated with severe periodontitis, were at least 50 percent
more likely overall to develop the
disease.
“Our study offers the first direct
evidence that specific changes in the
oral microbiome represent a likely
risk factor for pancreatic cancer
along with older age, male gender,
smoking, African-American race, and
a family history of the disease,” said
senior investigator and epidemiologist Dr. Jiyoung Ahn.
In another study published last
month, Ahn and her colleagues
showed that cigarette smoking was
linked to dramatic, although reversible, changes in the amount and mix
of bacteria in the oral microbiome.
However, she cautioned that further research is needed to determine
whether there is any cause-and-effect relationship, or how or whether
such smoking-related changes alter
the immune system or otherwise
trigger cancer-causing activities in
the pancreas.
The findings were first presented on
April 19 at the annual meeting of the
American Association for Cancer Research in New Orleans.
5
[6] =>
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