With the assistance of computer-aided design and rapid prototyping technologies, customized lingual orthodontics has brought lingual orthodontics back to the front line of orthodontics. As lingual appliances continue to develop, a better understanding of the unique biomechanics of lingual orthodontics is of increasing importance to clinical orthodontists. Three-dimensional finite-element analysis, which has been widely used in orthodontic research, plays an important role in the development of lingual orthodontics. This review investigates the research progress on the use of the three-dimensional finite-element method in lingual orthodontics.
