Provided are customized archwires that facilitate wire insertion into fixed appliances and sliding mechanics during the course of orthodontic treatment. These archwires are harmonized with lingual appliances by modifying the archwire shape to alleviate the adverse effects of bends and archwire length discrepancy while maintaining the overall archwire shape. This in turn can be accomplished by selecting one or more segments of an archwire shape from a library, strategically adjusting arch length, performing morphing or smoothing operations on a wire configuration intended for final occlusion, and combinations thereof.
