Eric M. Rivera discusses the importance of keeping a patient's natural teeth and providing all possible treatment options before resorting to the use of implants. He comments on tooth survival rates and encourages students to make every effort to save the natural tooth. He also shares some guidelines to determine the restorability of the tooth and discusses significant aspects of implants and amalgam plugs. Rivera talks about some of the diseases related to implants and possible treatments. He also describes internal bleaching procedures and mentions some of the more effective chemical solutions and techniques. Throughout the presentation he presents cases that illustrate common errors in dental procedures related to root canal filling and intraorifice barriers.