need help quick please

Had my 1st dental appt with biodentist..still taking iodine, selenium etc. I feel like getting the mercury out is a 911 (to me) I am so sick with this..But 1st they want to clean my teeth?? tmrw, then chelate for one week, then the estimate is 10 -$14,000.! He seems like he knows his stuff but it also feels like a money grab? If I weren't so ill and toxic I could think better. Have others done this while on iodine?Please forgive me for posting on the wrong forum. I'm scared and feel I know some of you a little. Trust issues I guess. thanks kathy