Mercury and lead are poisons, not allergens. Does'nt serum testing just show allergies? Also, you might react to a substance in a year or more, after it builds up in your system , even if you don't react immediately.
Don't we have a legal as well as moral right to know if our dental materials have barium, formaldehyde, aluminum , phenol arsenic etc and if so how much? Excuse me I must have forgotten that our parents were'nt told our "silver" fillings had mercury.
If the dentist wont disclose their materials over the phone I would go in and then refuse to pay.
I think "muscle testing" just shows there are as many crooks in alternative dentistry as in mainstream dentistry.
Have you considered gold fillings Lethally ?You get greater EMF exposure from your computer.