It is unpredictable whether the long term exposure to minute quantities of mercury leached from your fillings will cause harm or not. The safer choice is to re

It is unpredictable whether the long term exposure to minute quantities of mercury leached from your fillings will cause harm or not. The safer choice is to replace all the amalgam fillings with composite fillings, unless you cannot afford that (but composite fillings are much cheaper than ceramic facets or crowns, which may be better choices when possible). Anecdotally, I have replaced all my amalgam fillings more than 15 years ago and I have felt much better after that, because with the amalgam I had always felt an unpleasant metallic taste, while ceramic and composite resins do not have any taste.