Navigation Links
End in sight for the dreaded dentist drill
Date:7/20/2008

A new technology that spots tooth decay almost as soon as it's begun promises to reduce the need for drilling and filling, writes Patrick Walter in SCI's Chemistry & Industry (C&I) magazine.

Drilling is one of the top dental phobias and puts thousands of people off visiting their dentist every year.

The new technology, which may be available in dental surgeries in five years from now, is based on Raman spectroscopy most commonly used to distinguish between different chemicals by identifying each molecule's unique fingerprint. It detects decay simply and painlessly by pointing a tiny optical fibre at the tooth to check on its health.

A preliminary study at King's College London, where the technique is being developed, found that chemical changes in the tooth could be detected by analysing how light is scattered when a laser is fired at the tooth. Researchers were able to tell healthy teeth from carious teeth because bacteria, responsible for the decay, scatter light in a different way to healthy teeth. The results were presented at Microscience 2008.

Frances Downey, a PhD student working on developing the technique at King's College London, said: 'The earlier you spot decay the better as you can remineralise the area so there is no cavitation and therefore no need for a filling.'

Dr Frederic Festy, who is supervising the project, is planning a larger trial using more teeth samples and hopes to move onto human trials soon. The key to the technique is its simplicity, he explains.

Currently, decaying teeth are uncovered either by visual examination or the use of x-rays, but usually by then, the damage has been done and the decayed area must be drilled out. But Dr Steven Hogg, a microbiologist at Newcastle University's dental school, confirms that it is possible to repair teeth with a special mouthwash or fluoride varnish if dental decay is caught early enough.

The downside of developing the machines is the cost and the time it takes to do a scan 30 seconds can be a long time for any patient to remain perfectly still.


'/>"/>

Contact: Meral Nugent
meral.nugent@soci.org.uk
020-759-81533
Society of Chemical Industry
Source:Eurekalert

Related biology news :

1. Invasive Australian jellyfish sighted in Gulf of Mexico in summer 2007
2. Restoring sight, advances in fertility treatments and better visibility for pilots at FIO
3. New insight into the mechanisms of voltage sensing and transduction in biological processes
4. Stomach stem cell discovery could bring cancer insights
5. KGI professor contributes new insights on jumping genes
6. Study involving more than 100 scientists provides new insights on green algae
7. New insights into how lasers cut flesh
8. Tumor genome analysis unveils new insights into lung cancer
9. New treatment for age-related macular degeneration within sight
10. Oosight microscope enables embryonic stem cell breakthrough
11. New insights into the fate of antiparasitics in manure and manured soils
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/15/2016)... 2016 Research and Markets has ... Market 2016-2020,"  report to their offering.  , ... ,The global gait biometrics market is expected to ... period 2016-2020. Gait analysis generates multiple ... used to compute factors that are not or ...
(Date:3/31/2016)... March 31, 2016   ... or the "Company") LegacyXChange is excited to ... its soon to be launched online site for trading ... ) will also provide potential shareholders a sense ... technology to an industry that is notorious for fraud. ...
(Date:3/23/2016)... 2016 Einzigartige ... und Stimmerkennung mit Passwörtern     ... MESG ), ein führender Anbieter digitaler Kommunikationsdienste, ... SpeechPro zusammenarbeitet, um erstmals dessen Biometrietechnologie einzusetzen. ... Möglichkeit angeboten, im Rahmen mobiler Apps neben ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... , ... Supplyframe, the Industry Network for electronics hardware design ... Located in Pasadena, Calif., the Design Lab’s mission is to bring together inventors ... and brought to market. , The Design Lab is Supplyframe’s physical representation of ...
(Date:6/23/2016)... Calif. , June 23, 2016  Blueprint Bio, ... biological discoveries to the medical community, has closed its ... Matthew Nunez . "We have received ... with the capital we need to meet our current ... essentially provide us the runway to complete validation on ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... regulatory and technical consulting, provides a free webinar on Performing Quality ... 13, 2016 at 12pm CT at no charge. , Incomplete investigations are still ...
(Date:6/22/2016)... DIEGO , June 22, 2016 ... that will allow them to produce up to ... from one lot within one week. These high-quality, ... time laboriously preparing cells and spend more time ... possible through a proprietary, high-volume manufacturing process that ...
Breaking Biology Technology: