Bi-Helix Space Opening Spring for Lingual Orthodontics

Abstract

Orthodontists are perpetually challenged with gaining space. In lingual orthodontics, correction of crowding and rotations is even more challenging compared to labial orthodontics because of the decreased interbracket span. In the present article, the fabrication of a bi-helix spring is described which can be prepared easily, chairside and effectively creates space in crowded lingual orthodontic cases. The clinical application is demonstrated in two cases.