华西口腔医学杂志

• 基础研究 • 上一篇    下一篇

正畸力影响炎性牙周组织中肿瘤坏死因子α蛋白表达的实验研究

肖立伟1,陈扬熙2,白 丁2,张京剧2,段培佳2   

  1. 1.中南大学湘雅二医院 口腔科,湖南 长沙410011; 2.口腔生物医学工程教育部重点实验室,四川大学,四川 成都610041
  • 收稿日期:2005-06-25 修回日期:2005-06-25 出版日期:2005-06-20 发布日期:2005-06-20
  • 作者简介:肖立伟(1969-),男,湖南人,主治医师,博士
  • 基金资助:

    高等学校博士学科点专项科研基金资助项目 (20020610063)

Effects of Orthodontic Force on Tumor Necrosis FactorαProtein Expression in the Inflammatory Periodontal Tissues 

XIAO Li-wei1,CHEN Yang-xi2,BAIDing2,ZHANG Jing-ju2,DUANPei-jia2   

  1. 1.Dental Department ofthe SecondXiangya Hospital,Central South University,Changsha410011,China; 2.Key.Laboratory ofOral Biomedical EngineeringMinistry ofEd- ucation,Sichuan University,Chengdu610041,China
  • Received:2005-06-25 Revised:2005-06-25 Online:2005-06-20 Published:2005-06-20
  • Contact: 陈扬熙,Tel: 028-85503081

摘要: 目的 探讨正畸力及炎性刺激影响牙周组织改建的联合效应。方法 选用96只雄性SD成年大鼠,分别 建立实验性牙周炎大鼠和注射内毒素健康大鼠模型,近中移动两模型的上颌磨牙。结果 在0 h、2 h、12 h、2 d、7 d、 14 d时,磨牙近中压力侧牙周膜组织内肿瘤坏死因子α(TNF-α)的蛋白表达出现波动,2 d时平均光密度(OD)值达到 峰值。结论 急、慢性牙周炎症均可阻碍正畸力效应下的牙周组织改建,研究提示对成年牙周炎患者,牙移动应谨 慎进行。

关键词: 牙周炎症, 正畸力, 改建, 肿瘤坏死因子α

Abstract:

Objective To explore the combined effects of orthodontic force and inflammation on the remodelling of periodontal tissues.Methods The upper firstmolars underwentmesial orthodontic force on 48 rats suffering experimental periodontitis and 48 rats injected lipopolysaccharide, respectively.Results TheTNF-αprotein expression in the compressed periodontal tissues fluctu- ated during 0,2,12 hours and 2,7,14 days stages, the OD value got to the peak in the compressed periodontal tissues in 2 days. Conclusion The mechanical remodelling effectswere hindered due tothe circumstance of acute or chronic inflammation. The re- search suggests that the orthodontic treatment to adult patients with periodontal inflammation should be taken carefully.

Key words: periodontal inflammation, orthodontic force, remodelling, tumor necrosis factorα