Patients in restaurative treatment (prosthetic and periodontal) oftenly require simple orthodontic movements, in order to improve aesthetic and functional efficiency of the area involved in treatment. The complexity of orthodontics doesn't lie on its sophisticated technics, but on its biomechanical, histological and occlusal principles, among others. They must all be integrated a very clear way. The are no standarized methods to treat adult patients; the biomechanical principles must agree with intrinsec characteristics of each patient (anatomical, functional and biological).(AU)