As this process appears to involve passing current into the fabric of the tooth and the possiblity of return paths through the body, safety will be of great concern and even when all the development has been completed there will be a certification period although it may be possible to some degree to run both in parallel.
As I stated, within the emerging NV memory community there is a great deal of experience of the current driven movement of material (ions and atoms) some wanted, some unwanted. It is difficult to comment further until we can move our level of information from the qualitative to quantitative. To that end I have submitted to the developers at King's College a list of questions requesting quantitative information related to their process. The list is as follows:
1)What is the Voltage? 2)What is the current or current density at the point(s) of contact? "Imperceptible current" is hardly a quantitative answer. 3)What is the pulse width, pulse shape and and repetition rate? In other publications there is a quotation "low frequency electric currents" Does this mean AC or low repetition rate? 4)How is electrical contact made to the solvent or electrolyte and what route does the return current take? One of the readers has raised the possibility of nerve damage could you address that problem? 5)How thick is the active material or electrolyte? 6)How long does the process take? 7)In other publications there is a quotation that cites a "healing hand piece" what is that. Is it something like the figure that has now been added as a speculative design to my EETimes piece.
Given the answers to all or some of those questions we should be able to make some further assessment.
I think this technology is still at the laboratory stage and a few years will be required to sort out all the technical and safety related issues to get the regualtory authority nod for use of this technology on patients.
Though its good technology and an alternate to drilling but what would be the typical time required to complete the procedure. If the rate of mineral accumulation is very slow then there is a problem. Also how discomfortable will the new technique be as compared to drilling?
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