You can't realistically think that was what I was talking about, do you? Do you believe a patient receiving an orthopedic implant must know the metallurgy of titanium before surgery? I believe that in a given restorative situation, there may be one or several appropriate choices. These should be discussed. In the end, the professional is responsible for the choice, which the patient is free to reject. If the wrong choice is made, it is the doctor's mistake--no amount of explanation to the patient makes it the patient's mistake. If "polymer" is not appropriate, I don't ordinarily think I need to explain why it is inappropriate. If a patient asks, I will tell. If you wish to be as knowledgeable as I about dental materials, you'll most likely need to go to dental school. Sorry.
Steve