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Last Updated: Monday January 10 2011 08:35 GMT

Device blocks out dentist's drill

Dentist

When you go to the dentist, one of the scariest things is often the sound of dentist's drill.

Well now a new device has been invented to drown out the sound of the drill, while still allowing you to hear what the dentist is saying.

You plug the device into your MP3 player, and it filters out the high pitched sound of the drill.

It's still being developed by researchers in London, but it's hoped it could be in a dentist near you soon!