Yes Xeno show its fine with me. I had replaced and felt an itching for about a day then it died down and it seems to be fine. Part of me thinks that i should just leave it as there has been a dramatic improvement having just one out. I just hate the thought that ive got flouride being constantly released into my bloodstream. Unless it gets to a point where it just stops. Thanks for the reply. I guess its just something i have to think over.