Mercury is extremely bad, but its should not stop your from doing what you need to do to heal your teeth. Perhaps there are no books on regrowing teeth, but healing the ones you have is a good start. Good info is here on curezone in any of the dental forums. Look up userid SabastianReed who seems to have quite amazing results. An important factor is believing that it can be done and rejecting and staying away from all the naysayers.
http://www.curezone.com/forums/fm.asp?i=39988#i
"Healing teeth is quite easy if you believe in it and you get the nutrition."