BACKGROUND: the number of patients desiring an orthodontic and esthetic treatment at the same time recently increased considerably. The lingual technique offers the most aesthetic orthodontic treatment option because the brackets are invisible on the lingual surface of the teeth and the lips are not protruding. Despite the aesthetic advantage, this therapy has disadvantages such as restriction in oral comfort, in speech, in oral hygiene, injuries in the tongue and difficulties for eating. To improve these disadvantages, a new generation of lingual brackets optimized to the maximum through the individualization of the bases, the position of the bracket and wires used in orthodontic treatment have been recently developed. PURPOSE: to make a systematically review of literature to verify the patient's adaptation to different lingual orthodontic devices and the influence of these appliance in comfort and speech, as well. CONCLUSION: the literature currently supports that the latest generation of lingual individualized brackets provides greater comfort and speech easiness when compared to the traditional lingual technique brackets. However, success in therapy requires detailed guidelines on the potential for restriction of the oral comfort, word articulation, chewing and oral hygiene, regardless of the bracket system to be used.
Orthodontics; Phonation; Adaptation; Oral Hygiene
