| 摘要 |
An orthodontic appliance includes brackets, an arch wire and a hook for receiving an elastic member. The hook is movable from a first position when the elastic is not positioned about the hook to a second position when the elastic member is positioned about the hook. In one embodiment, the orthodontic appliance includes a clamp pivotable about the arch wire, a tube connected to the clamp and to the hook, and a second wire connected to the tube and to at least one of the brackets. In another embodiment, magnets are secured to the arch wire. One of the magnets can pivot about the arch wire and includes a hook attached thereto. In another embodiment, an orthodontic appliance includes brackets, an arch wire, a clamp secured to the arch wire, a hook and a wire. The wire is secured to the clamp and the hook. The hook is movable in response to a force applied by an elastic member. In another embodiment, an orthodontic appliance includes brackets, an arch wire, a hook and a wire segment. The wire segment is connected to one of the brackets and the hook. The hook is movable in response to a force applied by an elastic member. One of the brackets includes a slot and the wire segment extends into the slot. In another embodiment, an orthodontic appliance includes brackets, a tube and an arch wire extending through the brackets and tube. A spring loaded hook is connected to the clamp by a hinge.
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