self-locking bracket with balls in the channel for friction reduction. self-ligating orthodontic bracket that has a base (1) with retention brackets for bonding to the dental surface, an intermediate base (2), two gingival fins (3), two occlusal fins (4), a groove (5), a channel closure (6) and two friction reducing balls (8) located at the ends of the intermediate bracket (2) of the bracket. one friction reducing ball (8) is located at the mesial end of the middle bracket (2) of the bracket and the other at the distal end to form the respective mesial and distal outer walls of the intermediate bracket (2) and represent two support points for the orthodontic wire (7), also constituting the bottom of the channel (5). As the channel closure device (6) rests on the orthodontic wire (7), pressing it against the surface of the balls (8), they will slide, dissipating the friction and favoring tooth movement. Alternatively, the self-locking bracket may have two friction reducing balls (9) located at the lateral (mesial and distal) ends of the channel closure device (6). In addition, it may be in the form of molar tubes formed by a base (1) with retentions for direct bonding to the dental surface, an intermediate base (2), a gingival fin (3), an occlusal fin (4), a channel (5), a channel closure device (6), two friction reducing balls (8) located at the ends of the intermediate base (2) and a hook (10) located resting on the occlusal face of the intermediate base (2) .braquete auto-ligável com esferas na canaleta para redução de atrito. braquete ortodôntico auto-ligável que possui uma base (1) com retenções para colagem a superfície dentária, uma base intermediária (2), duas aletas gengivais (3), duas aletas oclusais (4), uma canaleta (5), um dispositivo de fechamento da canaleta (6) e duas esferas (8) para redução de atrito localizadas nas extremidades da base intermediária (2) do braquete. uma esfera (8) para redução do atrito está localizada na extremidade mesial da base
