THANK YOU!!! You really made my day when I read your post. I was so worried about the resin being toxic. You made me feel so much better about the choice I made. I knew that I was not going to allow them to use mercury and our dentist was not happy with me at all. To find a mercury free dentist that is covered by our insurance is not easy. Thank you for the info, I will check out that web site. Thanks again so much, you took a load off of my mind.