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一种新型牙槽骨牵张器的研制 被引量:3

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摘要 目的研制一种新型的牙槽骨牵张器,并且通过动物实验评价其应用效果。方法自行设计的牙槽骨牵张器装置。实验犬4只,拔除一侧下颌前磨牙1个月后,骨切开放置牵张器,间歇7d后以1mm/d速度牵张,共牵张6d。2只犬于牵张过程中逐步颊向改变移动骨段位置,另2只犬于牵张完成后第2天一步颊向改变移动骨段位置至术前预定位置,固定期2个月后行牵张区组织学检查。结果移动骨段都达到术前预定的高度及颊向位置。组织学检查显示牵张区新骨形成良好。结论新型的牙槽骨牵张器能在垂直向及颊舌向上精确控制牵张方向,且在垂直牵张过程中或牵张完成后改变移动骨段位置,可避免牙槽骨牵张成骨常见的轴向移位。动物实验预示该牵张器有广阔的临床应用前景。
出处 《安徽医科大学学报》 CAS 北大核心 2009年第6期763-765,共3页 Acta Universitatis Medicinalis Anhui
关键词 口外牵引器
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参考文献10

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共引文献40

同被引文献17

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