My dentist had never heard of diamondlite, she says she was learning from me. The material they use she says has never been a problem for anyone else, but she did say that if i had asked for diamondlite they would have got some for me. At the time i didn't know about white fillings being toxic, i dont think many people do! She did say though that if diamondlite filling material was that expensive she wouldnt get that many customers, but i think people should be given a choice.