I've got several fillings and several of the symptoms. One of the symptoms, memory loss, has really confounded me as to why it happens. The most obvious is being in the middle of a sentence and forgetting the next word I was going to say. Used to be, this would only happen occassionally and it would normally be someone's name. Now it happens one or more times daily and it is no longer limited to someone's name, it can be any word. Maybe this is the cause.