超声波对正畸牙移动过程中牙龈血流量影响的临床研究  

The effect of ultrasound on gingival blood flow of orthodontic tooth

作　　者：廖建宏[1] 

机构地区：[1]湖北职业技术学院医学院,湖北孝感432100

出　　处：《临床口腔医学杂志》2006年第1期41-42,共2页Journal of Clinical Stomatology

摘　　要：目的:研究超声波对正畸牙移动过程中牙龈血流量的影响,探讨超声波加快正畸牙移动的效果及作用机制。方法:20例初诊正畸患者随机分为治疗组和对照组,每组各10例,两组病例在进行颌内牵引前先进行牙列整平,治疗组对颌内牵引的测试牙加力前3 d进行超声波处理,对照组只进行颌内牵引,不进行超声波处理。两组病例均于术前1 d,加力后1 d、8 d、16 d测试血流动力学指数和累计牙移动量。结果:牙移动过程中牙龈血流动力学存在变化,超声波能显著增加动脉收缩期血流速度(Vs)、舒张期血流速度(Vd),对动脉阻力指数影响不大。结论:超声波能显著提高牙周血流灌注量及加快牙周组织新陈代谢。Objective：To evaluate t he effect of ultrasound on the gingival blood flow of orthodontic tooth. Method：20 patients were randomly divided into two groups and 10 patients in each group. Before intraocclusional traction, they have received orthodontic treatment of dentition leveling. The experiment group received ultrasound treatment 3 days before traction while the control group did not received ultrasound treatment. Gingival blood flow were examined at 1 days before ultrasound treatment and 1 th days, 8 th days, 16 th days after ultrasound treatment by laser Doppler and modeling recording respectively. Result： Ultrasound could significantly improve the velocity（Vs）, diastolic velocity（Vd）. Conclusion：ultrasound could be served as an auxiliary to accelerate the tooth movement, which may be related to the periodontical blood flow increase.

关 键 词：超声波 口腔正畸 牙移动 血流量 激光多普勒 

分 类 号：R783.5[医药卫生—口腔医学]