I just heard from our top doctor and he is not aware of anything like this, but he says if there is something like this, it isn't in the current literature. He also says it would have to take several treatments and visits. They'd also have to clean out the carious lesion before treatment, which is not usually a painless procedure, so would require injections of lidocaine.
That means that it cannot be price equivalent to a simple filling which usually takes one visit and 20 minutes max.
He also pointed out that our office uses Ozone therapy to kill the carries which also applies electrical stimulation. We've done that on small carious lesions and they've healed without filling once the bacteria is killed . . . but only if the lesion hasn't penetrated the enamel. If the enamel is penetrated, a filling is necessary other wise other opportunistic bacteria can invade and potentially cause catastrophic loss of the tooth.
He agreed with me that it is a possibility in search of blue-sky funding to develop a product without a viable market. He also said that anyone would be foolish to put off dental treatment waiting for a future miracle treatment that may or may not develop.
Regular checkups and cleanings! Personal responsibility insofar as doing your due dilligence at taking care of your teeth (brushing 3x’s/day and daily flossing). The use of topical flouride to reminerilize the demineralized enamel works as long as the decay has not passed through the enamel into the softer dentin underlying the enamel. Once the bacterial are into the dentin, it must be removed or the decay grows and ultimately enters the pulp(nerve & blood vessels). Once into the pulp, root canal therapy is the only way to salvage the tooth. Otherwise infection sets in and can actually be deadly if not treated.
As far as I know, there is no way to remove decay without removing tooth structure. Once the dentin is infected, it’s irreversable. There is no growing it back!
Take care of your teeth. You only get one set!