What's the buzz...

What's the buzz...

Painless needles for facial injections

Most people find it difficult to deal with needles – particularly when it comes to facial injections.

Dr. Jon Turk, a facial plastic surgeon in New York City, asserted that for his patients, the answer is a new technology dubbed ‘Ouchless Needle.’  “This is an instant type of anesthetic that allows you to have no preparation time for the patient,” Fox News quoted Turk as saying.

“…and yet still get rid of that pain associated with the needle itself.”  The device attaches onto a syringe and numbs the skin just long enough to do away with the discomfort of that initial ‘prick.’  “So to be able to dull that association of the needle going in and have the patient not worry so much about that pain - it has actually reduced the anxiety level a lot in patients,” Turk said.

The ‘Ouchless Needle’ is usually used with facial fillers like Botox and Juvaderm, but it is also effective for mole removal or for children’s shots.

Turk insisted that it helps reduce redness and bruising immediately in the days following the procedure.

New cavity-filling material reverses decay

A new composite material, which is made up of silver and calcium nanoparticles, could work as a dental filling that kills remaining bacteria so that patients don’t have to make a return trip to the dentist. Dental fillings replace the part of the tooth drilled out in order to remove decay. But if any bacteria remains, the cavity can grow right under the filling, Discovery News reported.

The new material, developed by researchers at the University of Maryland, also rebuilds any structure affected by decay, essentially getting rid of the cavity altogether.
Due to their small size, the silver nanoparticles can invade the cellular structure of bacteria and other microorganisms and kill them. Calcium phosphate, also included in the composite, is responsible for building the tooth back up.

 There have been questions raised about implementing these materials into toothpaste or mouthwash, but the scientific community isn’t ready to get on board with that just yet.

There is a lot of concern coming from scientists and researchers about the possible harmful affects of human consumption of the particles. Further testing will be conducted on volunteers to sort through the health concerns.

Dolphins don’t rest when watched too close

Australia’s largest dolphin-watching industry is under scrutiny after researchers found that getting too close cause disturbance to the animals.

Professor Robert Harcourt, of Macquarie University, and colleagues, investigated the impact of commercial dolphin-watching boats in Port Stephens in New South Wales from August 2008 to August 2009.

Port Stephens is a national marine park that is home to a small population of Indo-Pacific bottlenose dolphins (Tursiops aduncus), and to Australia’s largest dolphin watching industry.  In 2008, the port had more than 2,70,000 visitors and over 80 per cent of them came to marvel at the dolphins.  Dolphins ‘sleep’ by taking short floating breaks regularly through the day and night, resting half of their brain at a time.

But the researchers found that the dolphins in the marine park stopped taking rests when the boats came within 100 metres of them.

“They don’t rest when there are tour boats near them. It might be a long term stressor,” ABC Science quoted Harcourt, a marine behavioural ecologist, as saying.

When the boats came within 50 metres, the animals spent 66.5 per cent less time feeding and 44.2 per cent less time socialising and four times more milling than normal, they reported in the current issue of the Journal of Environmental Management.

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