【摘要】 目的　探讨用山羊建立下颌骨牵张成骨实验动物模型的可行性和优越性。方法　选用山羊6只,通过自行研制的下颌牵张器经口外途径建立一种延长双侧下颌体的实验动物模型。结果　6只山羊的下颌骨被成功延长10mm,牵张间隙内新骨生成确切。结论　山羊是一种较理想而经济的进行牵张成骨基础研究的实验动物,本研究所建动物模型具有很高的可行性和可重复性更多还原

【Abstract】 Objective To establish an animal model in goats for lengthening mandible by distraction osteogenesis. Methods Six goats were used in this study. Extraoral distractors were activated 7 days after bilateral mandibular osteotomies at a rate of l mm/d for 10 days. Results The mandible of all goats were lengthened successfully, and the regenerating bone in distraction gap was found exactly. Conclusion Goat is a good animal for developing an experimental model on study of distraction osteogenesis.更多还原