In part 1 of this three-article series, we reviewed the core concepts of the Complete Clinical Orthodontics (CCO) system, how we integrated the straightwire appliance (SWA) with self-ligation to improve control and efficiency, and the rationale for the recently developed CCO prescription, as well as the three stages of treatment mechanics. Specifically, we reviewed the goals and objectives of each stage of treatment emphasizing the more appropriate wire sequence to facilitate accomplishing these objectives. In this article, we will further review some
areas that we think are very important in mechanics and that usually require a more in-depth analysis.