| 摘要 |
An orthodontic device for shifting a molar tooth along the mandibular arch includes an elongated guide element, on whose one end a first securing element is installed to secure the guide element relative to the madibular arch. A first tube is formed to be shiftable on the guide element, wherein the first tube has a first securing device for optionally securing the first tube relative to the guide element. A second tube is guided on the first tube like a telescope arm, wherein the second tube has a second securing element for securing to the molar tooth. A spring is disposed to act between the first and the second tube which forces the second tube in a direction away from the first securing device.
|
