Principi di base e applicazioni cliniche del sistema Invisalign

Abstract

Objectives To describe the Invisalign system that allows an esthetical orthodontic treatment in adult patients with malocclusions where pure tooth movement is required by orthodontic clear aligners. These appliances cover the whole teeth surface, unlike traditional orthodontic brackets and wires. Materials and methods The innovation of this system is the virtual displaying of orthodontic tooth movement with a CAD system and the manufacturing of clear aligners (CAM stage) using the newest technologies. Study analyses are always needed to allow the orthodontist to devise the first virtual treatment plan followed by a critical evaluation before the selection of the final result. Results Two cases with dentoalveolar problems in permanent dentition are reported with pre- and post-treatment records. A case of combined treatment with esthetical brackets and Invisalign is also reported. Finally, the author shows records of a case at the beginning, before finishing, and two years after treatment. Conclusions The type of malocclusion and patient selection are the most important factors for a successful treatment with the Invisalign system, because patients must comply in wearing aligners day and night.