| 牵张成骨延长一侧下颌骨对颞下颌关节的影响 |
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| 引用本文： | 李继华,邹淑娟,胡静,王大章,唐正龙.牵张成骨延长一侧下颌骨对颞下颌关节的影响[J].实用口腔医学杂志,2002,18(5):438-440. |
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| 作者姓名： | 李继华 邹淑娟 胡静 王大章 唐正龙 |
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| 作者单位： | 成都四川大学华西口腔医学院,610041 |
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| 基金项目： | 国家自然科学基金资助 (项目批准号:39970 797) |
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| 摘 要： | 目的：研究牵张成骨（DO）延长一侧下颌骨对双侧颞下颌关节（TMJ）的影响。方法：用DO技术将8只山羊的一侧下颌骨延长10mm，在牵张完成后第8和16周分别处死4只动物，取双侧关节作组织学和扫描电镜研究。结果：下颌一侧DO术后双侧髁状突发生适应性改建，髁突表面超微结构正常。结论：在适当的牵张条件下延长一侧下颌骨不会对TMJ造成病理性损害。
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| 关 键 词： | 牵张成骨延长 颞下颌关节 下颌延长 颞下颌关节功能障碍 |
| 文章编号： | 1001-3733(2002)-05-0438-03 |
| 修稿时间： | 2001年3月29日 |
Changes in the temporomandibular joint after unilateral mandibular distraction osteogenesis |
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| Li Jihua,Zou Shujuan,Hu Jing,et al..Changes in the temporomandibular joint after unilateral mandibular distraction osteogenesis[J].Journal of Practical Stomatology,2002,18(5):438-440. |
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| Authors: | Li Jihua Zou Shujuan Hu Jing |
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| Affiliation: | Li Jihua,Zou Shujuan,Hu Jing,et al. West China College of Stomatology,Sichuan University,Chengdu 610041 |
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| Abstract: | objective: To observe the changes in the bilateral condyles after unilateral mandibular lengthening with distraction osteogenesis. Methods: Unilateral mandibular osteodistraction (DO) was performed in 8 goats. 4 animals were sacrificed at 8 and 16 weeks after completion of distraction respectively. The TMJ specimens were harvested and processed for histologic, histomorphometric and scanning electron microscopic (SEM) examinations. Results: Reversible adaptive remodeling in the condyles was observed following mandibular distraction at a rate of 1 mm/d. No degenerative changes in the TMJs were found after mandibular lengthening. Conclusion: Gradual distraction at a rate of 1 mm/day may not lead to degenerative change in condylar cartilage. |
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| Keywords: | Distraction osteogenesis Temporomandibular joint Mandibular lengthening |
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