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:2/8/2017)... NEW YORK , Feb. 8, 2017 /PRNewswire/ ... an individual,s voice to match it against a ... voice such as pitch, cadence, and tone are ... systems require minimal hardware installation, as most PCs ... remotely for different transactions. Voice recognition biometrics are ...
(Date:2/8/2017)... NEW YORK , Feb. 7, 2017 /PRNewswire/ ... point. Driven largely by the confluence of organizations, ... users, distaste for knowledge-based systems (password and challenge ... consumer, industrial, and government systems. The market is ... been a demarcation between consumer and enterprise uses ...
(Date:2/7/2017)... 7, 2017 Zimmer Biomet Holdings, Inc. (NYSE ... will present at the LEERINK Partners 6th Annual Global ... on Wednesday, February 15, 2017 at 10 a.m. Eastern ... presentation can be accessed at http://wsw.com/webcast/leerink28/zbh .  The ... via Zimmer Biomet,s Investor Relations website at http://investor.zimmerbiomet.com ...
Breaking Biology News(10 mins):
(Date:2/23/2017)... DIEGO and SAN FRANCISCO ... a privately-held regenerative medicine company, and Beyond Type 1, ... with type 1 diabetes, today announced a grant from ... a functional cure for type 1 and other insulin-requiring ... ViaCyte has been developing innovative stem cell-derived cell replacement ...
(Date:2/22/2017)... ... February 22, 2017 , ... ... acquired Kendall Research Systems, LLC (KRS) clinical development program. KRS is ... interface technology for research and clinical applications. The terms of the transaction were ...
(Date:2/22/2017)... , Feb. 22, 2017 Scientists propose in ... and organ damage in Gaucher and maybe other lysosomal ... and lower costs than current therapies. An ... Medical Center , which also included investigators from the ... report their data Feb. 22. The study was conducted ...
(Date:2/22/2017)... ... February 22, 2017 , ... ... and scientists from around the world, is pleased to announce the 2nd annual ... 23, 2017. This premier, online-only conference focused on the development and advancements in ...
Breaking Biology Technology: