Interdental Distraction Osteogenesis and Rapid Orthodontic Tooth Movement: A Novel Approach to Approximate a Wide Alveolar Cleft or Bony Defect
- 1 April 2000
- journal article
- case report
- Published by Ovid Technologies (Wolters Kluwer Health) in Plastic & Reconstructive Surgery
- Vol. 105 (4), 1262-1272
- https://doi.org/10.1097/00006534-200004040-00002
Abstract
The closure of a wide alveolar cleft and fistula in cleft patients and the reconstruction of a maxillary dentoalveolar defect in traumatic patients are challenging for both orthodontists and surgeons. This is due to the difficulty in achieving complete closure by using local attached gingiva and the great volume of bone required for the graft. In this article, the authors propose using interdental distraction osteogenesis to create a segment of new alveolar bone and attached gingiva for the complete approximation of a wide alveolar cleft/fistula and the reconstruction of a maxillary dentoalveolar defect. They performed this procedure on one patient with a traumatic maxillary dentoalveolar defect and 10 patients with unilateral or bilateral cleft lips and palates who had varied dentoalveolar clefts/fistulas. Interdental and maxillary osteotomies were performed on one side of the dental arch by the cleft or defect. After a latency period of 3 days, the osteotomized distal segment of the dental arch was then distracted and transported toward the cleft or defect by using a toothborne intraoral distraction device. The alveoli and gingivae on both ends of the cleft or defect were approximated after distraction osteogenesis. The need for extensive alveolar bone grafting was eliminated. A segment of new edentulous alveolus and attached gingiva was created interdentally at a site distant to the cleft or defect. In the cleft patients, teeth were moved orthodontically into the regenerate (newly formed alveolar bone) dental crowding 1 week after distraction. The orthodontic tooth movement was rapidly completed in 3 months, and the edentulous space was eliminated. Interdental distraction osteogenesis minimizes an alveolar cleft/fistula and helps reconstruct a maxillary dentoalveolar defect by approximating the native alveoli and gingivae; it also creates new alveolar bone and gingiva for rapid orthodontic tooth movement.Keywords
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