i'm pondering this procedure too- not looking forward to it,i see BIDH are offering pain free dentistry at a high cost if u go for the full anasthesia. u can elect the laughing gas option as a cheaper alternative..re the mercury ....u can get high levels in fish...much more than u are likely to get from a filling or three...apparently coriander /Pak Chee is good at removing heavy metals from the body. Plants , including weed also bring metals into the body..