| 摘要 |
An orthodontic dental distractor for rapid orthodontic tooth movement into a fresh extraction socket. The device includes a screw bar and a screw nut fixedly engaged with one end of the screw bar, a first joint engageable with one end of the screw bar next to the screw nut and a first hook engageable with a canine band mounted on a canine. A second joint is engageable with another end of the screw bar and has a second hook engageable with a molar band mounted on a molar. By turning the screw nut, the screw bar will move the first joint towards the second joint, thus moving the canine rearward toward the molar.
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