Functional orthodontic movable device (10), comprising a pair of front metal bite splints, mutually superimposed at a slight distance, one of which rests on the occlusal surface of the upper incisors, respectively two lateral symmetrical pairs of metal bite splints, mutually superimposed at a slight distance, in each of which a respective bite splint rests on the occlusal surface of corresponding upper molars and premolars, and also including a vestibular arch (12) with lugs at the level of the canines, side shields (13) made of resin and, in combination with said pair of front bite splints, metal bilateral rear occlusal tabs (14), wherein in each pair of said superimposed metal bite splints, a first (11) and a second (15) bite splint are movably connected to each other by means of a plurality of stiff filiform guiding supports (16), fixed with respect to one of said two bite splints (11, 15), guiding the occlusal plane, the other of said bite splints (11, 15) being limitedly mobile in relation to said same guiding supports (16), substantially in parallel arrangement to said occlusal plane, and wherein between said first (11) and said second (15) bite splints there are provided elastic means (17) for contrasting the mutual closure of said first (11) and second (15) bite splints.
