Thanks Spirit.....Ordered the book last week, so that is on its way.... Our dental Amalgams were all removed last year also, so that was a timely thing. Hind sight, but I wish we had a gauger from 2 years ago to see if what we were doing all along has been doing well, but we may have been in a different place at time to consider the alternative way, so everything we do is a stepping stone.... Any additional advice would be great...