咬合力对托槽与弓丝间摩擦力影响的有限元分析  

A STUDY ON THE FRICTION BETWEEN ORTHODONTIC BRACKETS AND ARCH WIRES UNDER SIMULATED MASTICATORY CONTACTS USING FINITE ELEMENT METHOD

作　　者：厉松[1] 王邦康[1] 罗颂椒[2] 廖力[3] 

机构地区：[1]首都医科大学口腔医学院,100050 [2]四川大学华西口腔医学院,610041 [3]北京理工大学,100080

出　　处：《北京口腔医学》2002年第3期134-136,共3页Beijing Journal of Stomatology

摘　　要：目的 :研究咬合力对托槽与弓丝间摩擦力影响。方法 :应用有限元分析的方法 ,对咬合力对摩擦力的影响进行了模拟研究。研究不同大小的咬合力作用下 ,尖牙远中移动过程中 ,弓丝与托槽之间摩擦力的变化。结果 :在咬合力的作用下 ,弓丝与托槽基底间的摩擦力随着咬合力的增加而减少 ;弓丝与托槽翼间的摩擦力随着咬合力的增加而增大。结论Objective:To study the friction between orthodontic bracket and wire influenced by the masticatory contacts.Methods:The friction between orthodontic brackets and arch wires under simulated masticatory contacts was studied using the finite element method.Results:The frictional forces between arch wires and bracket bases decreased significantly under masticatory contacts,while the frictional forces between arch wires and bracket wings increased.Conclusion:The total frictional forces between orthodontic brackets and arch wires increased under masticatory contacts.

关 键 词：咬合力 托槽 弓丝 摩擦力 有限元分析 口腔正畸治疗 

分 类 号：R783.5[医药卫生—口腔医学]