Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Safe decay detector developed by dentists and textile experts

20.03.2002


Tooth decay could soon be detected without resorting to potentially harmful X-rays - by using a novel electrical technique developed by dental researchers at the University of Dundee in an unusual partnership with textile experts at Heriot Watt University.



Laboratory tests show the device, which measures the electrical resistance of teeth, is twice as accurate as current examination techniques and detects decay in its earliest stages when preventive treatment is still possible.

Known as ACIST - which stands for AC impedance spectroscopy technique -the device has been developed by the Dundee team together with colleagues in St Andrews University. The sensor, which was patented in 1996, is being developed in collaboration with textile specialists at Heriot Watt University.


The Dundee and Heriot Watt teams learned yesterday they have been awarded £139,500 funding by Scottish Enterprise through the Proof of Concept Fund, to develop a prototype probe for testing. If successful it could be in the market place in two years.

The concept exploits the change in the nature of the tooth as it decays. As caries progresses microscopic pores develop in the tooth which fill with fluid that conducts current. By applying an electrically conductive strip to the tooth and passing a small electrical current through it,
dentists can use the amount of resistance to the charge as a gauge of whether there is any decay.

Principal investigator Dr Chris Longbottom: "The technique is expected to be faster, safer and more accurate than X-rays which is good news for patients, dentists and the health service where it has cost-saving implications. By picking up the disease at an early stage it will also be
possible in many cases to stop or even to reverse the decay thus saving more teeth."

The plastic sensor used to measure the electrical resistance is being developed by Heriot Watt`s school of textiles in Galashiels who are working on a special polymer that could be inserted between the teeth like a wider type of dental floss.

The information from the sensor is fed to the electrical device and could be used by dentists instead of a traditional X-ray.

Once complete the probe will be clinically tested and assessed by dental researchers and, if successful, it could be taken to the commercial stage.

Dr Longbottom welcomed the funding award: "This funding will allow us to take an original concept which works in the laboratory and test its true potential in prototype as a first step towards possible commercialisation.

Caroline Petrie | alphagalileo
Further information:
http://dundee.ac.uk/

More articles from Health and Medicine:

nachricht Spanish scientists create a 3-D bioprinter to print human skin
24.01.2017 | Carlos III University of Madrid

nachricht Tracking movement of immune cells identifies key first steps in inflammatory arthritis
23.01.2017 | Massachusetts General Hospital

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Scientists spin artificial silk from whey protein

X-ray study throws light on key process for production

A Swedish-German team of researchers has cleared up a key process for the artificial production of silk. With the help of the intense X-rays from DESY's...

Im Focus: Quantum optical sensor for the first time tested in space – with a laser system from Berlin

For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.

According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Breaking the optical bandwidth record of stable pulsed lasers

24.01.2017 | Physics and Astronomy

Choreographing the microRNA-target dance

24.01.2017 | Life Sciences

Spanish scientists create a 3-D bioprinter to print human skin

24.01.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>