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Osteogénesis por distracción en defectos mandibulares y su estabilidad esquelética a los 2 a?os de tratados

Keywords: distraction osteogenesis, mandibular hypoplasias, mandibular distraction relapse.

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Abstract:

to show the results of the skeletal stability after 2 years of to be operated on from the first patients presenting with mandibular hypoplasias treated with osteogenic distraction in our country. eleven hemi-mandibles in 7 patients using mandibular osteogenic distraction with leibinger distraction device. latency period was of 72 hours, mandibular distraction was applied at a rate of 1,0 mm each 12 hours and fixation was of 8 weeks. then, postsurgical orthodontic treatment was started. there were significant postoperative skeletal changes. results were assessed by cephalometry studies before intervention, after and at 2 years of treatment. also, there were significant postoperative skeletal changes in snb and anb with p< 0,05. the arithmetic mean of the osteodistraction achieve in branch was of 7,5 mm and in the body it was of 8,0 mm. at 2 years there remain a mandibular bone stability of 88,8 % qualified as good. occlusal changes were favorable. there were not complications involving the good course of patients treated. it was shown that the bone distraction is an effective method for treatment of mandibular defects.

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