Is It Safe to Go to A Non-Bilogical Dentist?

How dangerous going to a non-biological dentist is to remove my three mercury fillings?

I called this dentist office in my place and the receptionist said that the doctor had numerous cases like this (silver-mercury removal), although this dentist is not a biological dentist. I asked if they use the "rubber dam" method and I was told "yes". What do you think? Should I go to him or not? Is there anybody out there that went to a non-bilogical dentist for siver-mercury removal and had a bad after-effects?

I can't find a biological dentist here in Hawaii.