Dr. John Khademi and Dr. Eric Herbranson join Alan to talk about the state of endodontics, conserving dentin and how we know what we know. I got to know Dr. John Khademi in the mid-2000's from Dental Town. I was introduced to Dr. Eric Herbranson in 2011 at the Academy of Microscope Enhanced Dentistry where he talked about the 3D Tooth Atlas he had created. Both are influential endodontists who have controversial ideas about how we've been treating teeth over the years. Today's episode features a journey from patient based outcomes to case selection, access openings to how we know what we know. There's a fair amount of hero worship here I've been a huge fan of these guys for quite some time. And a bonus...the one and only Dr. David Clark of Bioclear sits down at the end and talks endo! If you like endo (or even if you don't), this interview will change the way you look at saving teeth! Links from the show: The Dental Hacks Nation closed Facebook group has over 17,000 members! Head over there to interact with other Dental Hacks listeners, guests and Brain Trust members every day, all day! Remember...if you don't have any thing "dental" on your FB page, we might decline your membership request. So IM the group or email us at info@dentalhacks.com. The only way you can really learn the Bioclear method is directly from the source at the Bioclear Learning Centers! Check them out at www.dentalhacks.com/learningcenter Have you tried Cosmedent's Renamel Nano Plus yet? Improved handling, improved color and improved polishability make this a no brainer to have in your armamentarium! Check it out at www.dentalhacks.com/nanoplus. If you have any questions or comments for us please drop us an email at info@dentalhacks.com or find us (and like us!) at www.facebook.com/dentalhacks. Or, if you prefer...give us a call at (866) 223-5257 and leave us a message. You might be played in the show! If you like us, why not leave us a review on iTunes? It helps us get found by like minded people and might even help us get into "What's Hot" in the iTunes store! Go to this link and let the world know about the DentalHacks! Finally, if you aren't an Apple person, consider reviewing us on Stitcher at: stitcher.com/podcast/the-dentalhacks-podcast! If you would like to support the podcast you can check out our Patreon page! Although the show will always remain free to download, our Patreon supporters get access to special bonus content including (at least) one extra podcast episode every months! Also be sure to check out the Dental Hacks swag store where you can find t-shirts, stickers coffee mugs and all sorts of other things that let the world know you're a part of the Hacks Nation!