Here's what you need to know about
fillings:
iaomt.org/for-patients/alternatives-mercury-amalgam-fillings/If there's a biological dentist near you, that would be your best option. A biological dentist will likely know (and care) more about
the materials they are using.
All composites are not equal. Some can contain toxic materials that you would not want in your body. Some are better quality and will last longer. My biological dentist only uses high quality and less toxic materials and did compatibility testing for me through Biocomp Labs to make sure that I would not likely react to the materials being used.