An orthodontic system includes at least one orthodontic bracket attached to a surface of a tooth, in which the bracket defines an archwire slot for receiving an archwire. The bracket includes a gear system, a motor to drive the gear system, and an integrated circuit to control the motor. A computer server sends instructions to the integrated circuit in the orthodontic bracket, and the integrated circuit controls the motor according to the instructions to drive the gear system to apply a force to the archwire. In some examples, the orthodontic bracket includes a gear that partially protrudes into the archwire slot and is configured to engage some of the indentations on the archwire. In some examples, the bracket includes a rotatable module rotatably coupled to a base, and the base includes a miniature gear system to drive the rotatable module relative to the base. In some examples, an orthodontic arch wire has a shape that corresponds to a dental arch, the arch wire having a first end portion that has a first series of grooves. In some examples, a bracket has a first gear that is configured to engage the first series of grooves, enabling the first gear to drive the first end portion and provide a force along a longitudinal direction of the arch wire.Système orthodontique comprenant au moins un support orthodontique fixé à une surface d'une dent, dans lequel le support délimite une fente de fil d'arc destinée à recevoir un fil d'arc. Le support comprend un système d'engrenage, un moteur pour entraîner le système d'engrenage, et un circuit intégré pour la commande du moteur. Un serveur informatique envoie des instructions au circuit intégré dans le support orthodontique, et le circuit intégré commande le moteur en fonction des instructions pour entraîner le système d'engrenage afin d'appliquer une force au fil d'arc. Selon certains exemples, le support orthodontique comprend un engrenage qui fait partiellement saillie dans la fente de fil d'arc et est conçu pour entrer
