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Dental innovation promises to improve teeth whitening
Updated: 7/8/2008 2:00:37 PM

Many people like to have their teeth buffed and whitened to achieve that Hollywood smile, but unfortunately sensitive teeth is usually a side effect.

Those days may soon be over however, as researchers at Kings College London and Imperial College claim to have created a compound that can improve the look of teeth while actually desensitizing them, the Engineer reports.

OSspray, the spin-off company developing this technology, used a bioactive calcium sodium phosphosilicate material, also known as bioglass, which is very similar to tooth enamel.

It originally tried to use the product for cutting teeth and although this did not work, they found that it worked as a polishing powder, proving more effective at removing stains than current methods.

Simon Cartmell, OSspray chairman, told the publication that tooth dentine consists of fluid-filled tubules, which are exposed above the gum line.

"Our material, because of its particle size and distribution, embeds in the mouth of the tubules, bonding to the surface and locking them off. After repeated use, you build up a thin layer of bioglass, which is remarkably like tooth enamel," he explained.

If this product proves to be successful it could remove the need for people to use bleaching products to whiten their teeth, which have been known to damage enamel and cause heightened sensitivity.
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