They'll always be differing advice thrown at you, and I know how it feels to feel overwhelmed by it all. I would simply have them safely replaced a bit at a time. Whether it's one or two or four at once, make sure you are well protected. I would "personally", do about two at a time, as I feel there is enough mercury vapor release, that it is worth taking it slower. However, anytime you're in a dental office, you're inhaling mercury because either someone has had amalgam put in, or they've had it removed. So there will always be a certain amount of exposure, but it's a case of keeping it reduced as much as possible.

I would not rush to extract teeth unnecessarily, if you can have a safe amalgam removal at your disposal. There are risks to removing teeth too! Cavitations are always a possibility (holes leftover after tooth removal that may NOT heal over properly with bone and may leave a hole that can fill in with potent bacteria). what are the causes for this? Failure to remove periodontal ligament after tooth is pulled and vaso constricters in anaesthetics (which work by hindering/frustrating blood flow to increase numbness and the length of time it may last) and maybe other factors like a lack of healing efficiency.

All dental work has some kind of risk attached to it. So I wish there was one answer for us all, but sadly there isn't. We can only advise on what we "think" will help, based on our own experiences and probably other people's too, but even that varies and can do so quite considerably.

You can remove amalgams in a particular order yes. I think that can be tested for on a voll (EAV) machine? I don't know how accurate this is or how necessary it is, but one can always do this if in doubt and it's probably worth it! I think Hal Huggins believes there is....some don't though.