- Abstract -

Adult treatment is considered one of the most challenging parts in contemporary orthodontics. These patients are highly motivated and show excellent compliance to doctor’s instructions. The demand for orthodontic treatment in adults had led to a higher need for esthetic appliances. Therefore, the introduction of lingual appliances in the world of orthodontic appliances has provided the ultimate in aesthetics. This article attempts to review the current clinical and biomechanical principles of lingual orthodontics.

Key words: lingual orthodontics, adult treatment, biomechanics.