旋转脉动磁场对兔正畸牙槽骨改建的影响

journal6 ›› 2010, Vol. 31 ›› Issue (2): 108-110.

旋转脉动磁场对兔正畸牙槽骨改建的影响

(1．中南大学湘雅二医院口腔科，湖南长沙 410011；2．吉首大学医学院，湖南吉首 416000)

出版日期:2010-03-25 发布日期:2012-04-18
作者简介:康祖铭(1968-)，男，湖南龙山县人，中南大学博士研究生，副教授，主要从事口腔正畸临床及基础研究.
基金资助:
湖南省教育厅科学研究项目(06C647)

Experimental Study of Rotating Pulsed Magnetic Field on Orthodontic Alveolar Bone Remodeling in Rabbits

(1.The Second Hospital of Xiangya,Central South University,Changsha 410011,China;2.Medical College of Jishou University，Jishou 416000，Hunan China)

Online:2010-03-25 Published:2012-04-18

摘要/Abstract

摘要：目的观察旋转脉动磁场对兔正畸牙齿移动的影响.方法 25只体重为1.0~1.5 kg的健康新西兰大耳白兔按每组5只随机分为实验1，3，5，7，14 d.2％戊巴比妥钠麻醉下于双侧上颌第一磨牙与切牙间拴结不锈钢螺簧，施力80 g，左侧只加力为对照组，右侧加力并加旋转脉动磁场为实验组，观察正畸牙槽骨的改建情况并测量牙齿移动距离.结果实验组正畸牙齿移动距离明显大于对照组（p＜0.05)，光镜观察显示实验组牙槽骨的改建活跃，张力侧骨形成的量明显高于对照组.结论旋转脉动磁场可促进正畸牙槽骨改建.

关键词： 脉动磁场, 牙移动, 骨改建

Abstract: Objective to investigate the effect of rotating pulsed magnetic field on orthodontic tooth movement in rabbits.Methods 25 white rabbits was randomly divided into 5 groups of 1，3，5，7 and 14 days．Under anesthesia condition by 2％ pentobarbital sodium，the stainless coil springs were fixed between the first maxillary molar and the incisor producing the force of 80 g．The Experimental group was treated by rotating pulsed magnetic field and the force,and the control group was only treated by the force.Later,the histological changes of orthodontic alveolar bone and measure the distance of toothmovement were investigated.Resultsthe distance of tooth movement in the experimental group was larger apparently than that in the control group(p<0.05).The histological changes showed that the osteogenesis and osteolysis of the alveolar bone appeared progressively active.Conclusion rotating pulsed magnetic field can promote the orthodontic alveolar remodeling.

Key words: rotating pulsed magnetic field, tooth movement, bone remodeling

康祖铭, 李春梅, 石君, 沙永红. 旋转脉动磁场对兔正畸牙槽骨改建的影响[J]. journal6, 2010, 31(2): 108-110.

KANG Zu-Ming, LI Chun-Mei, SHI Jun, SHA Yong-Hong. Experimental Study of Rotating Pulsed Magnetic Field on Orthodontic Alveolar Bone Remodeling in Rabbits[J]. journal6, 2010, 31(2): 108-110.