Can a root-canal lead to serious health problems later on?

I just came across this article:

http://www.realfarmacy.com/97-of-ter...tal-procedure/



I'm in no way competent to judge how valid this claim is.



Thought I'd drop it in this forum to see what JREF members think.

via JREF Forum http://forums.randi.org/showthread.php?t=267761&goto=newpost