Simplicity and reliability of invisalign® system

Invisalign® system is an orthodontic treatment method in which removable, clear, semi-elastic polyurethane aligners are used to correct malocclnsions. Invisalign® therapy corrects tooth malposition by a series of removable transparent polyurethane splints (aligners) that covering all the teeth plus the marginal aspects of the gingiva. which gradually move the teeth into an ideal position. Here a case series of patients treated ivith Invisalign® is performed to verify' the efficiency, effectiveness, and stability of treatment. Twenty patients (15 females and 5 males, median age 35.6 ± 13.5 years, mm ii. max 59 years) affected by malocclusion were enrolled in this retrospective study. There were seven skeletal class 1, twelve skeletal class 2 and one skelatal class 3 malocclusion. 1 lateral cross-bite, 13 deep-bite and 4 open-bite. Lateral teleradiographic projections of the cranium were used. The cephalometric analysis was performed by using Dolphin system on pre-treatment and final control radiographies. Several variables related to teeth position were investigated. Pearson Chi Square was used to detect statistical differences among studied variables. In the present study we demonstrated that luvisaligu® is an effectiveness tool to reach good clinical results since most of the studied variables (i.e. teeth position) have statistically significant differences between pre and post-treatment radiographies