This sure looks and sounds promising!

No More Drilling and Filling at the Dentist Office? Please Let it Be So!

Teresa Neumann (Jun 18, 2014)

"Not only is our device kinder to the patient and better for their teeth, but it's expected to be at least as cost-effective as current dental treatments. Along with fighting tooth decay, our device can also be used to whiten teeth." -Professor Nigel Pitts, Dental Institute, King's College London
(London, England)—Dentists, according to a report from King's College London, "could soon be giving your teeth a mild 'time warp' to encourage them to self-repair, thanks to a new device being developed by dental researchers. Reminova Ltd, a new spin-out company from King's College London, aims to take the pain out of tooth decay treatment by electrically reversing the process to help teeth 'remineralize.'"
The technique is called Electrically Accelerated and Enhanced Remineralization, or EAER, and is hoped to be available within three years.
According to the report, the device rebuilds decayed teeth without the need for drills, needles or fillings, saying that "by accelerating the natural process by which calcium and phosphate minerals re-enter the tooth to repair a defect, the device boosts the tooth's natural repair process."
The new dental repair technique will, no doubt, be an answer to prayer for many.
"The way we treat teeth today is not ideal," said Professor Nigel Pitts from the Dental Institute at King's College London. "When we repair a tooth by putting in a filling, that tooth enters a cycle of drilling and re-filling as, ultimately, each 'repair' fails."