Hi Teri,
The short answer to your question is Yes, it is safe to be taking NCD
and advisable, if you have mercury fillings in your mouth.
Have a look at this movie created by the International Academy of Oral
Medicine and Toxicology.
http://www.iaomt.
org/videos/ index.asp
I think it clearly demonstrates that it is not only during extraction
of amalgam fillings that dangerous levels of mercury are mobilized.
Please watch the movie and decide for yourself.
Declan