The objective of this work is to describe a modern appliance to the distalization of upper molars, Fast-Back, result of clinical investigations in a large number of devices for the distalization of upper molars with a reduced need for collaboration by the patient. Fast-Back can produce continuous and default forces generated by 200 or 300 g titanium springs, following a definite direction of movement; high three-dimensional control can carry out the distalization of upper molars with which body movement.
Technical characteristics and operational modalities through the presentation of a clinical case in point are indicated.
(Rev Esp Ortod. 2012;42(2):065-072)