Implants have proven to be a viable option for replacement of missing teeth and for retention of both fixed and removable prosthetics. However, implants present their own set of challenges. This presentation will address both surgical and prosthetic failures, both in the early and late phase of treatment. We will review pre-operative planning to minimize failure and discuss how to diagnose and manage complications during surgery and postoperatively as well as manage failing implants and implant prostheses.