1. Be very careful about letting a "regular" dentist do mercury removal. Before you let any dentist work on your teeth, do yourself a favor and read the Amalgam Forum at the very least. I not only read through the forum for months, I read several books about alternative dental practices. A dentist who doesn't use the proper removal protocols can really make your situation worse.
2. Before you agree to any root canals please read the root canal forum and educate yourself about what you are really in for.