Establishment of animal experimental model on orthodontic rapid tooth movement through distraction o...
Establishment of animal experimental model on orthodontic rapid tooth movement through distraction osteogenesis of periodontal ligament / 牙周膜牵张成骨快速牙移动动物模型的建立
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Xi'an: Xi'an Jiaotong University
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Chinese
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Xi'an: Xi'an Jiaotong University
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目的建立动物模型,探讨加快正畸牙移动速度的新方法.方法杂种犬8只,拔除下颌两侧第二前磨牙,实施减阻-牵张措施后,在移动牙、支抗牙上安装自制牵张装置,以2次·d-1的频率、0.5mm*d-1的速率加力14d使移动牙向拔牙窝移动.停止加力、固定31d;对照侧仅行拔牙术.每周定期测量移动牙、支抗牙移动距离.实验开始、结束时,拍摄对照侧、实验侧X线片,取材行光镜观察.结果①加力14d,移动牙平均向远中移动4.54mm,支抗牙向近中平均移动0.45mm,两者有显著性差异(P<0.01);②X线片显示未见牙根明显吸收,光镜下未见牙髓和压力侧组织坏死及牵张侧龈下骨质缺损等副作用.结论实施减阻-牵张措施可大幅度提高牙齿移动速度,支抗牙支抗丧失少,无明显副作用.
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Full title
Establishment of animal experimental model on orthodontic rapid tooth movement through distraction osteogenesis of periodontal ligament / 牙周膜牵张成骨快速牙移动动物模型的建立
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TN_cdi_proquest_journals_2182433114
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https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_journals_2182433114
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1671-8259
