Dr. Robert George Tupac DDS <br />Dr. Robert George Tupac <br />Dr. Robert Tupac DDS <br />Dr. Robert Tupac <br />Robert George Tupac DDS <br />Robert George Tupac <br />Robert Tupac DDS <br />Robert Tupac <br /><br />"When I graduated from University, we weren't given any information about where [fluoride] came from," <br />says Dr. Robert George Tupac DDS, a former Navy practitioner who also had a private dental practice for 20 years, <br />in the documentary FIRE WATER: Australia's Industrial Fluoridation Disgrace. <br />"We all assumed it was [pharmaceutical-grade] calcium fluoride."