I wanted zirconium implants - I thought they'd be better. Turns out my body rejected 2 and after I chose to do a muscle test which confirmed non-compatability, asked the dr. to remove the 3rd also even though that one was implanted in the bone which dr meyers didn't seem to want to do and he even seemed annoyed most of the time with me. I mostly liked this office, but I want others to know this can happen and I since heard it seems common with woman. He replaced them with a bridge and did make me whole, and the healing treatments were great, but that was months ago and I have not heard from the office at all... Do your pre-testing.