This book outlines a system of orthodontic therapy based on the use of Gummetal arch wire that can improve patient comfort and shorten treatment time. Although many alloys have been used for orthodontic wire, none offer the benefits of Gummetal, which combines a super-low Young modulus with extreme strength. The use of Gummetal in en bloc protocols allows clinicians to construct simple orthodontic appliances that not only distribute a gentle, near-optimum force but can also achieve an ideal occlusion in less time than traditional treatment. The author details the characteristics and application of Gummetal and the en bloc treatment strategies that maximize three-dimensional tooth movement in orthodontic therapy.