Saving teeth is the primary goal of all endodontic therapy. However, when conventional, non-surgical root canal therapy does not work and the tooth has good coronal restoration and periodontal conditions, apicoectomy and retrofilling can be considered as a viable way to save teeth that would otherwise be extracted through a single procedure. In this video, Dr. Nasseh explains this procedure and how the modern “Lid Technique” developed by RWE is more efficient and effective than the historical apicoectomy procedure.