An Endodontic Retreatment ebook is a digital document that provides detailed information and guidance on the process of re-treating a root canal. This includes information on why a retreatment may be necessary, step-by-step instructions on how to perform the procedure, and potential complications or challenges that may arise. The ebook may also include case studies, illustrations, and other resources to help dental professionals improve their skills and knowledge in this area of endodontics.