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'Nanospheres' that block pain of sensitive teeth

es would be successful at filling the channels they used commercially available silica nanospheres of around 40nm in diameter.

Earl said: "We found these tiny spheres are really good at filling the channels in teeth, packing inside them quite evenly and going down the holes to a good depth. They'd be the perfect shape of particle for filling these channels and reducing or preventing the pain caused by sensitive teeth".

The next stage of their research will be to work out how to synthesize nanospheres of hydroyapatite or a combination of hydroxyapatite and fluorine which would fill the holes and encourage re-mineralization at the same time and so be an incredibly powerful repair tool for dentists.


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Source:Institute of Physics


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