I think it was our new dentist that did say the amalgams weren't safe. I was going to raise questions about the years of lies but thought better of it.
My complaint about all this is that yes we were lied to about this, and, when they started using the white filling, our dental insurance didn't cover the white fillings, calling them 'cosmetic', and saying they didn't last as long as the amalgam. I don't know if dental insurance now covers the white filling or not since we no longer have dental insurance.
This thread prompted me to do some googling, and I found that dental amalgam (not eating fish, or anything else) is the largest source of exposure to mercury in the general population. So why are we warned to limit consumption of fish, but not worry about amalgam? Something is "fishy" about that prioritization.