| 双维控制牙槽骨牵张器的成骨效应 |
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| 引用本文： | 黄代营,聂二民,孙明,黎炽彬.双维控制牙槽骨牵张器的成骨效应[J].中国组织工程研究与临床康复,2011,15(37). |
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| 作者姓名： | 黄代营 聂二民 孙明 黎炽彬 |
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| 作者单位： | 1. 中山大学附属第一医院口腔科,广东省广州市,510080
2. 安徽医科大学附属第一医院口腔颌面外科,安徽省合肥市,230032 |
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| 基金项目： | 广东省科技计划项目,双维控制的垂直牙槽骨牵张器的研制及动物实验 |
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| 摘 要： | 背景:牵张成骨增高牙槽嵴在基础研究及临床已有很多成功报道,双维控制垂直牙槽骨牵张器可有效防止单向直线牵张器行牙槽骨牵张发生轴向移位.目的:研制双维控制的牙槽骨牵张器,并通过动物实验观察其成骨效应.方法:选择杂种犬4只,拔除一侧下颌前磨牙形成萎缩牙槽骨模型.1个月后行骨切开放置双维牵张器,7 d后垂直牵张 (1 mm/d,共5 d).完成垂直牵张后,利用双维牵张器颊向控制功能将移动骨块颊向牵出(大约2.4 mm),固定2个月后行大体观察及组织学检查.结果与结论:4只犬中2只黏膜伤口愈合良好,2只黏膜出现裂开,行二次缝合后愈合,牵张器固位良好,未出现松动、脱落.牵张骨块向垂直向及颊向的位移量满足实验目的要求,牙槽骨垂直向高度平均增加(5.0±0.2) mm,颊向宽度平均增加(2.4±0.3) mm.大体观察及组织学检查均证实牵张成骨的骨块新骨形成良好.说明双维控制垂直牙槽骨牵张器能较好的控制移动骨块垂直或颊向的移动方向,并且新骨形成良好.
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| 关 键 词： | 牵张器 双维牵张 牵张成骨 牙槽骨增高 犬 骨组织工程 |
A bidirectional alveolar bone distraction device for osteogenesis of alveolar bone |
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| Huang Dai-ying,Nie Er-min,Sun Ming,Li Chi-bin.A bidirectional alveolar bone distraction device for osteogenesis of alveolar bone[J].Journal of Clinical Rehabilitative Tissue Engineering Research,2011,15(37). |
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| Authors: | Huang Dai-ying Nie Er-min Sun Ming Li Chi-bin |
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| Institution: | Huang Dai-ying1,Nie Er-min1,Sun Ming2,Li Chi-bin1 1Department of Stomatology,First Affiliated Hospital of Sun Yat-sen University,Guangzhou 510080,Guangdong Province,China,2Department of Oral and Maxillofacial Surgery,First Affiliated Hospital of Anhui Medical University,Hefei 230032,Anhui Province |
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| Abstract: | BACKGROUND:Alveolar bone augmentation using a unidirectional distraction device may lead to axial displacement. A bidirectional distraction device can control the vertical and buccal-lingual directions. But studies regarding this have been rarely reported. OBJECTIVE:To develop a bidirectional alveolar bone distraction device and to investigate its effects on osteogenic effects through an animal experiment. METHODS:Four adult mongrel dogs were established into models of alveolar bone atrophy by extraction of... |
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