Some options for you:
1) Gold fillings. expensive and gold colored. But very bio-compatible.
2) Ceramic fillings. tooth colored but very expensive, I am guessing 8 cavities would cost $4-8000 to do. (prices vary regionally) Thats like a college fund starter for a new baby!
3) Ceram-X. You will want to check out the MSDS on this product, as I have no idea personally if it has BPA in it.
4) Glass-ionomer cement. A temp filling material, very bio-compatible. Sometimes used in baby teeth. Low cost but might require frequent replacement. It will be hard to find a dentist to install this in an adult.
5) Adult stainless steel crowns. (like Jaws in one of the James Bond movies) An ugly approach, but less expensive than gold. I would not do it.
I am not at all concerned about the "nano" aspect of Ceram X. I have worked with both polymer formulation and nanocomposites in my former jobs. Polymers have 60% + ceramic powders in them, to make the filling white, properly translucent/opaque, and wear resistant. The filler has a range of sizes, so it will handle properly before curing (thixotropy). The "nano" claim is being made here by some people in marketing
because 5% or so of the filler particles are of a very small size. (This is probably true for other products on the market.) People making the product in Germany need to have proper respiratory protection - regardless of the particle size. But this is not an issue for the dentist or you. Contrary to the hype about nano technology, these small inert filler particles are just small and inert. If the filling wears, they will pass through your gut and exit your body.
(With amalgam, silver particles and mercury are doing this right now, with a small % of the mercury being absorbed into your bloodstream)http://www.dentsply.de/docs/index_ka...6093_suma~.htm