An orthodontic system includes an orthodontic arch wire having 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, the first end portion has a second series of grooves, and the first and second series of grooves are positioned on opposite sides of the first end portion. In some examples, a bracket can be provided in which the bracket has a first gear and a second gear, the first gear is configured to engage the first series of grooves and the second gear is configured to engage the second series of grooves, enabling one or both of the first and second gears to drive the first end portion and provide a force along a longitudinal direction of the arch wire.
