One key factor in the economic lingual treatment concept presented in this series of articles is the use of prefabricated, customized nickel titanium arch wires with superelasticity and temperature-dependent spring-back qualities (memory effect). Using a modern, e-modulus driven archwire sequence, a non-extraction case can be treated with 1 or 2 wires per arch, and an extraction case with 2 or 3 wires per arch. This article, the last in the Lingual Orthodontics series, uses clinical examples to show the various clinical potentials of these wires with temperature-dependent superelasticity, as not only part of but occasionally all the treatment is done with these prefabricated, customized nickel titanium wires.