My EC seemed to start around the time of my silver fillings, too. But my EC remained after all of my silver fillings were removed. I do know that these types of fillings contract whenever you eat something hot or cold. Due to the contraction, it can create a little crack inside your silver fillings which collects bacteria. The dentist said that is what he saw in my teeth when he removed the silver fillings. I have a family member who still has all of his silver fillings, but he does not have a lip problem. It could be that some people are more sensitive to silver/mercury, though. I remember how I used to have a metal taste in my mouth every so often (early sign of toxicity) until the silver fillings were removed. Mercury also showed up in my blood tests until I had my silver fillings removed.