Eficacia del movimiento de rotación de caninos con el sistema de alineadores Invisalign®

Résumé

Objetives: the aim of this project is to calculate the proportion of planned canine rotation movement that would translate into clinical movement, in order to accurately determine the amount of overcorrection that needs to be programmed. Material and methods: our sample was made up of 189 clinical cases form Invisalign® Global Gallery. In these cases, the canine rotation movement programmed in the first ClinCheck®, measured in degrees, was compared with the amount of that same movement in the Aditional Aligners ClinCheck®. Based on these results, the proportion of non-obtained movement was calculated. Friedman test and Spearman correlation test were used to correlate the proportion of obtained movement with other variables. Results: in our sample, 54,28% of the planned rotation movement was clinically obtained; 51,32% in upper canines and 57,26% in lower canines. The amount of planned movement that is finally translated into clinical results grows with the amount of programmed movement up to 15 degrees of rotation. Conclusions: overcorrection in canine rotation movement should be programmed taking into account that only half of the planned movement would be obtained. In order to increase the accuracy of this movement, it is recommended to use ataches, to plan Interproximal Reductions and to use auxiliary techniques.