A development process, similar to software engineering, was adopted for the Harmony™ Ergonomic Scalers and Currettes. A gamut of handles was used as the starting point for our research. These different handle designs helped establish comparison points for iterative development. New design concepts were created, then tested, and features that showed the strongest performance were progressed whereas elements that did not perform well were removed. This step-by-step approach of design, test, and revise allowed us to make rapid progression on key factors like reduction of pinch force and reduced pressure on the tooth.