No, the dose makes the poison.
Even someone from the Dark Ages could comprehend that. Why can’t you?
No substance is toxic in itself.
The same substance is toxic or not depending on a number of factors, most especially the concentrations.
In low concentrations, hydrogen sulfide is not toxic (or else our very flatulence would be a problem). A high concentration of hydrogen sulfide is a severe health risk. And yet this is a substance our own bodies produce naturally.
Trying to label substances as always toxic or non-toxic is an oversimplification and an appeal to emotion rather than numbers.
“Surprisingly”?
At any rate, as noted above (and to which you haven’t actually responded), the environmental impact of dental amalgam is minor compared to other (and scarier) sources of mercury. It’s only when you aggregate all medical sources you get the 50% number (which itself doesn’t include all sources of mercury in the environment). Citations are only good if they are used correctly.
Your argument appears to be an appeal to emotion (mercury dangerous = anything containing mercury is dangerous) combined with the misuse of facts and figures to claim they say something they don’t.
I am still astonished how people will get in their car and drive to the mall without giving it a thought and then obsess about the trivial amount of mercury that might leach out of an old filling.
Unless I have misunderstood something, the leaching should take place only from the exposed surface, not from the bulk, so removing old fillings is really pointless. I know my recent fillings have been with some kind of synthetic material that is hardened when a laser is turned on inside my mouth.
Sure, but let me tell you about root canals…
<ducks and runs>
