Drill-free tooth repairs coming 'in three years'

New technique could replace the drill with electric pulses that help teeth repair themselves

A dentist treating a patient
(Image credit: PHILIPPE HUGUEN/AFP/Getty Images)

British researchers are developing a new dental technique that could spell an end for drilling and filling.

The technology, which uses electric currents to help teeth repair themselves, could be in dentists' surgeries within three years.

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