Let it not be said that we don't pull out all the stop at Edinburgh Skeptics. All the way from Kansas we welcome Dr. Grant Ritchey. Before his excellent talk for us on dental pseudoscience we sat down with the Skeptical DDS (Doctor of Dental Surgery) to hear about his "favourite" dental quackery, his journey into skepticism and his made-up-on-the-spot superpower.

Author, Science Based Medicine blog (www.sciencebasedmedicine.org) Co-host (with Dr. Clay Jones) of The Prism Podcast (www.prismpodcast.com) Twitter - @skepticaldds