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| Developed in cooperation with Pfor. Dr. H.F.Sailer Dept. of Cranio- Maxillofacial Surgery Zürich, Switzerland |
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| Intraoperative Approach
The Zurich Pediatric Maxillary Distractor
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A high LeFort I Osteotomy is performed
avoiding damage to non erupted teeth, especially the high positioned
canine.
The pterygoid process is separated from the maxillary tuberosity as well as from the nasal septum. The maxilla is gently mobilized without down fracturing. Bone is removed at the zygomatic buttress for proper placement of the distraction device. The distractor is opened slightly more than the desired amount of maxillary advancement and then adapted to the bone surface of the zygoma and the alveolar process. By turning the flexible activator with the patient-screwdriver clockwise the distractor is closed and the maxilla moves forward. Following a 3-5 day latency period distraction proceeds at a rate of 0.5mm to 1mm per day on each side of the maxilla. |
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![]() ![]() Preoperative frontal and lateral photographs
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![]() ![]() ![]() Preoperative Lateral Cephalogram, lateral cephalogram during the active treatment stage showing distractors in place, and post distraction lateral cephalogram
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![]() ![]() Postoperative frontal and lateral photographs
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| Case photos courtesy of Daniel B. Spagnoll, D.D.S.,
PhD
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| 51-550-15 | ![]() Distraction length 15 mm, left |
| 51-551-15 | ![]() Distraction length 15 mm, right |
| 51-500-90 | ![]() Distraction Screwdriver |
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Copyright © 2001 KLS Martin, L.P. All
rights reserved