I studied mercury toxicity and safe amalgam removal before making my move for 3 months. I have contacted number of AZ based dentist before finding David Rush. He is not listed with iaomt but follows Huggins protocol, unlike Scottsdale based dds (who wanted $450 just for consultation), consultation with dr.Rush was free. All staff is super friendly, the facility is modern and clean and the removal went terrific, pricing was very reasonable too. Highly recommend.