单晶和多晶陶瓷托槽与金属弓丝摩擦力的对比研究

›› 2013, Vol. 33 ›› Issue (12): 821-823.

单晶和多晶陶瓷托槽与金属弓丝摩擦力的对比研究

王天丛¹,陈文静²,王文梅¹,赵计林¹,季骏¹,何冬梅³,闫翔¹

1. 南京大学医学院附属口腔医院南京市口腔医院
2. 江苏省口腔医院
3. 南京大学医学院附属口腔医院

收稿日期:2013-05-02 修回日期:2013-06-01 出版日期:2013-12-28 发布日期:2014-01-02
通讯作者: 王天丛 E-mail:hero730@foxmail.com
基金资助:
江苏省医学领军人才与创新团队项目;南京市医学科技发展专项资金

Comparative study on frictional forces between monocrystal ceramic bracket and polycrystalline ceramic bracket when combined with arch-wires

Received:2013-05-02 Revised:2013-06-01 Online:2013-12-28 Published:2014-01-02
Contact: tian-cong WANG E-mail:hero730@foxmail.com

摘要/Abstract

摘要： 目的对单晶陶瓷托槽和多晶陶瓷托槽的摩擦力学性能进行初步测试，并与相同槽沟尺寸的金属托槽进行比较。方法使用万能材料力学实验机测试单晶陶瓷托槽、多晶陶瓷托槽及金属托槽与2种金属弓丝在弹力结扎圈结扎下的最大静摩擦力和平均动摩擦力。结果单晶及多晶陶瓷托槽与两种弓丝结合产生的摩擦力较金属托槽大，多晶陶瓷托槽的摩擦力较单晶陶瓷托槽的摩擦力大（P<0.05）。结论单晶陶瓷托槽与金属弓丝的摩擦力较多晶陶瓷托槽小,但较金属托槽大。

关键词: 单晶陶瓷托槽, 多晶陶瓷托槽, 摩擦力, monocrystal ceramic bracket, polycrystalline Ceramic bracket, frictional force

Abstract: Objective A Preliminary test is to be performed to test the friction properties of monocrystal ceramic bracket and polycrystalline ceramic bracket compared with metal bracket of the same size. Methods The maximum static friction force and the average dynamic friction of monocrystal ceramic bracket, polycrystalline ceramic bracket and metal bracket combined with two kinds of metal arch-wires were tested by a universal testing machine. Results The friction produced by the combination of monocrystal ceramic bracket or polycrystalline ceramic bracket with two kinds of arch-wires was greater than the metal bracket. The metal bracket had smallest frictional force of three kinds of brackets. The monocrystal ceramic bracket had smaller frictional force than polycrystalline ceramic bracket. Conclusions The frictional force of monocrystal ceramic bracket and arch-wires is smaller than polycrystalline ceramic bracket，but is greater than metal bracket combined with arch-wires.

中图分类号:

R783.1

王天丛陈文静王文梅赵计林季骏何冬梅闫翔. 单晶和多晶陶瓷托槽与金属弓丝摩擦力的对比研究[J]. 口腔医学, 2013, 33(12): 821-823.

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