Blast of gas that could replace dentist's drill and make fillings stronger
A new ‘gas-firing' device may offer a pain-free alternative to the dentist's drill - and could make fillings even more hard-wearing.
The device, which resembles an electric toothbrush, cleans out cavities in rotten teeth in only 30 seconds, according to new research.
It works by generating high-energy gas and liquid particles to kill bacteria and blast out the decayed pulp of the tooth.
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