Trips to the dentist is about to get a lot less painful as the whine of the dentist's drill will soon be silenced for good, scientists say.
Scientists believe they have found the secret of a "completely painless" filling by identifying a material which repairs decaying teeth - with no need for a drill.
"The results that have now been analysed show there is a clear benefit, clear repair of those decayed lesions within a month of a single application of the material and the results are highly significant," the Daily Mail quoted Professor Jennifer Kirkham, who led the study at Leeds University's Dental Institute, as saying.
The 'filling without drilling' method involves mimicking the conditions that promote the original growth of enamel, the report said.
Tooth enamel forms around protein molecules - and the scientists made their breakthrough by reproducing the natural protein in a liquid that can be painted on to a tooth.
Teeth start decaying when acids from mouth bacteria cause microscopic holes in enamel.hen the protein solution is applied to the tooth, it immediately soaks into these holes and forms a scaffold of protein where the enamel starts to regenerate. Within weeks, the enamel layer is restored.