The Smoking tooth Explained. This is the last video in a very important series on Mercury Filling Removal and the dangers of Mercury Fillings if left un checked in your mouth. You can find the rest of these videos on our website. Dr Layton Is the Premier Holistic Dentist in San Diego. He has been practicing Natural Dentistry in Encinitas Ca for over 25 years. For more information you can contact us at 285 N. El Camino Real, Suite 102, Encinitas, CA 92024 .