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Bad Tooth Brushing Habits That You Should Nip In The Bud PDF Print E-mail

By mendy r

Yes, brushing your teeth is just one of those jobs that you need to tick off your daily routine, but more than providing you with minty fresh breath, you’re investing in the health of your pearly whites. Your teeth aren’t going to last forever, so make sure you get as much longevity out of them […]

The post Bad Tooth Brushing Habits That You Should Nip In The Bud appeared first on Worldental.Org.

The 38th Annual Convention of PCOMS coninciding with its 55th Anniversary will be held this JANUARY 24 – 25, 2015 at the Auditorium of the Lung Center of the Philippines.  This years theme “Empowering the practice of OMS” will feature … Continue reading
The 38th Annual Convention of PCOMS coninciding with its 55th Anniversary will be held this JANUARY 24 – 25, 2015 at the Auditorium of the Lung Center of the Philippines.  This years theme “Empowering the practice of OMS” will feature … Continue reading
The 38th Annual Convention of PCOMS coninciding with its 55th Anniversary will be held this JANUARY 24 – 25, 2015 at the Auditorium of the Lung Center of the Philippines.  This years theme “Empowering the practice of OMS” will feature topics ranging from biopsy procedures to dental implants and oral & maxillofacial surgery including a […]
Many people with missing teeth don't need dentures PDF Print E-mail

The latest research from the University of Adelaide challenges current thinking on whether many people with tooth loss really need dentures.

The findings have major implications for public dental health resources and costs for patients.

Studies conducted by the University's Australian Research Center for Population Oral Health in the School of Dentistry have found that people with tooth loss do not have their quality of life interfered with provided they still have a certain number and type of teeth left.

In dentistry terms, these patients are considered to have "shortened dental arches," enabling them to maintain functional use of many teeth. The researchers say there is a cutting off point at which tooth loss interferes with quality of life, but patients only need dentures when they reach that cutting off point.

The study, based on data of more than 2700 Australians, is to be published in a future issue of the journal Community Dentistry and Oral Epidemiology. The researchers say as many as 434,000 Australians who currently would be considered for dentures at some stage in their lives may not really need them.

"For years it has been taken for granted that if people experience tooth loss, they will need dentures, bridges, implants or other corrective processes to replace the missing teeth," says lead author Dr Haiping Tan.

"What we've found is that it really depends on the position of the teeth that have been lost, as well as the number. Most people have 28 adult teeth, plus the four wisdom teeth, but it is possible to have significantly less teeth as long as people have them in the right positions and in the right numbers.

"It's about getting the right balance of biting and cutting teeth at the front of the mouth with enough of the chewing teeth at the back -- that can make a real difference to people's dental function," she says.

Study co-author Professor Marco Peres, also from the University's School of Dentistry, says the findings are significant both for patients and for dental health systems.

"For the public health sector, this work raises the question of how to allocate resources, especially if many people are currently receiving dentures or other corrective procedures when they may not need to do so," Professor Peres says.

"These resources could instead be allocated to the prevention of further tooth loss, diagnostic services and follow up for the patient, rather than prosthetic procedures," he says.

Story Source:

The above story is based on materials provided by University of Adelaide. Note: Materials may be edited for content and length.





Ancient dental plaque: A 'whey' into our milk drinking past? PDF Print E-mail

Archaeologists and geneticists have been puzzling this question since it was revealed that the mutations which enable adults to drink milk are under the strongest selection of any in the human genome.

These mutations cause the intestinal enzyme lactase -- which digests lactose milk sugar during infancy -- to continue to be produced long after weaning. This lactase persistence is prevalent only in some populations around the world such as in Northern Europe. In most other people of the world, the lactose cannot be properly digested and can cause diarrhea, or other symptoms of lactose intolerance resulting from the gases produced by fermentation by the gut bacteria.

Some dairy products such as yoghurt and cheese have had their lactose content reduced or removed through processing. In the case of cheese, the lactose ends up in the whey, where it is often fed to pigs and other animals. If it is so easy to remove milk sugars, and the mutation is only required for drinking raw milk or whey -- why is it under such strong selection?

An international team of researchers involving the Universities of York, Oklahoma and Copenhagen, and University College London (UCL) has shed new light on this puzzling question through an unusual source -- investigations of calcified dental plaque on ancient human teeth.

To understand how, where and when humans consumed milk products, it is necessary to link evidence of consumption directly to individuals and their livestock. Previous research by archaeologists has used indirect lines of evidence, such a high frequency of adult females in animal herds or milk lipids present on pots, to identify evidence of dairying.

Now a breakthrough by the international team, reported in the journal Scientific Reports, provides the first direct evidence of milk drinking from an increasingly important archaeological reservoir -- human dental calculus, a mineralized form of dental plaque. Using the latest mass spectrometry-based techniques for ancient protein sequencing, the team detected a milk protein, beta-lactoglobulin (which they had previously reported from a modern dental plaque sample) in ancient remains.

Lead author Jessica Hendy, from the University of York's BioArCh research facility, said: "It seemed too good to be true; beta-lactoglobulin is the dominant whey protein -- the one used by bodybuilders to build muscle mass -- and therefore the ideal marker for milk consumption. We kept finding sequences of beta-lactoglobulin and at first we thought it could be modern contamination. But we repeated the analysis several times, at three different laboratories in three different countries, each time finding the same results."

Lead author Dr Christina Warinner, from the Department of Anthropology, University of Oklahoma, said: "The study has far-reaching implications for understanding the relationship between human diet and evolution. Dairy products are a very recent, post-Neolithic dietary innovation, and most of the world's population is unable to digest lactose, often developing the symptoms of lactose intolerance."

Professor Dallas Swallow, from the Research Department of Genetics, Evolution and Environment at UCL, added: "It is only within the last several thousand years that genetic mutations arose in Europe, East Africa, and the Arabian Peninsula that allowed lactase to persist into adulthood, a genetic trait that enables lifelong milk consumption."

The new research provides direct protein evidence that cattle, sheep, and goat whey has been consumed by human populations for at least 5,000 years. This corroborates previous isotopic evidence for milk fats identified on pottery and cooking utensils in early farming communities. Until now it has been difficult to investigate both human genetic milk adaptations and direct evidence of milk consumption at the same time, in part because milk preserves so poorly in the archaeological record.

"The discovery of milk proteins in human dental calculus will allow scientists to unite these lines of evidence and compare the genetic traits and cultural behaviors of specific individuals who lived thousands of years ago," says Dr Warinner.The team found direct evidence of milk consumption preserved in human dental plaque from the Bronze Age to the present day.

Professor Matthew Collins, of BioArCh in York's Department of Archaeology, said: "Some of the findings were as we expected. For example, we did not find any evidence of milk protein in 19th century West African individuals from regions where dairying was uncommon. But we found widespread evidence for milk consumption at European sites spanning a period of 5,000 years."

Dr Camilla Speller, from York's BioArCh research facility, said: "Most of the molecular evidence for milk consumption has previously come from residues on ceramics. While pot residues can tell you that people are using dairy products, it can't tell you which individuals in the group are actually consuming the milk. This study is very exciting, because for the first time, we can link milk consumption to specific skeletons, and figure out who has access to this important nutritional resource."

Dr Enrico Cappellini, from the Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, says the milk protein beta-lactoglobulin is also an important find because it contains sequence variants that allow different milk-producing livestock to be distinguished.

"We found widespread evidence of cows' and sheep milk consumption as early as the Bronze Age, whereas evidence for goat milk consumption was limited to Bronze Age northern Italy," he said.


The Importance of Dental Care During Pregnancy PDF Print E-mail

By marvyb

Pregnancy can be a wonderful experience for most women, but it is also a time to take good care of the mother’s changing body. One of the critical changes she will need to address is dental care. During pregnancy, there will be less calcium in the teeth to support the growing infant, leaving a woman’s teeth weakened and […]

The post The Importance of Dental Care During Pregnancy appeared first on Worldental.Org.

Botox and Dermal Filler Workshop at the 2014 GNYDM Presented by DentaSpa Seminars, the world's... PDF Print E-mail
DentaSpa Seminars, the leading dental training academy on Botox and Dermal Fillers, will be the official presenter at the 2014 Greater New York Dental Meeting. A full day lecture and hands-on Botox and Dermal Filler workshop will be available for attending doctors, December 2 or December 3, 2014.
Research finds tooth enamel fast-track in humans PDF Print E-mail

Research has discovered a link between prenatal enamel growth rates in teeth and weaning in human babies.

The research found that incisor teeth grow quickly in the early stages of the second trimester of a baby's development, while molars grow at a slower rate in the third trimester. This is so incisors are ready to erupt after birth, at approximately six months of age, when a baby makes the transition from breast-feeding to weaning.

Weaning in humans takes place relatively early compared to some primates, such as chimpanzees. As a result, there is less time available for human incisors to form, so the enamel grows rapidly to compensate.

This research can increase our understanding of weaning in our fossil ancestors and could also help dentists as dental problems do not register in all teeth in the same way. Enamel cells deposit new tissue at different times and different rates, depending on the tooth type.

Exactly when early weaning in humans first began is a hotly debated topic amongst anthropologists. Current dental approaches rely on finding fossil skulls with teeth that are still erupting -- which is an extremely rare find. Anthropologists will now be able to explore the start of weaning in an entirely new way because 'milk teeth' preserve a record of prenatal enamel growth after they have erupted and for millennia after death.

The research, funded by a Royal Society equipment grant, was conducted by Dr Patrick Mahoney from the Human Osteology Research Lab in the University's School of Anthropology and Conservation.

Story Source:

The above story is based on materials provided by University of Kent. Note: Materials may be edited for content and length.


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