thanks for that link, but my fillings are very old and are going to need replacing sometime in the near future anyways so it's not just about getting rid of the mercury but just taking care of my teeth so that i don't lose them. it is going to cost me more than the average cost of crowns then going to a regular dentist would but my insurance is going to pick up some of the cost. any suggestions on what the new material i should use for the fillings?