中国组织工程研究

中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (12): 2183-2186.doi: 10.3969/j.issn.1673-8225.2010.12.023

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

经过热处理不锈钢方丝的摩擦力

张  敏1，侯  录1，徐实谦2   

  1. 1哈尔滨医科大学第二临床医学院，黑龙江省哈尔滨市  150001；2哈尔滨工业大学，黑龙江省哈尔滨市150001
  • 出版日期:2010-03-19 发布日期:2010-03-19
  • 通讯作者: 侯 录，主任医师，哈尔滨医科大学第二临床医学院，黑龙江省哈尔滨市 150001
  • 作者简介:张 敏★，女， 1976年生，山东省安丘县人，汉族，哈尔滨医科大学在读硕士，主治医师，主要从事口腔医疗方面的研究。 zhangmin81160125@yahoo.com.cn
  • 基金资助:

    黑龙江省科学技术计划项目(2006G0945-00)，项目名称：仿真模拟正畸矫治过程中托槽与弓丝间摩擦力的研究。

Stainless steel archwires friction after heat treatment

Zhang Min1, Hou Lu1, Xu Shi-qian2   

  1. 1 Second Clinical Medical College, Harbin Medical University, Harbin   150001, Heilongjiang Province, China; 2 Harbin Industrial University, Harbin   150001, Heilongjiang Province, China
  • Online:2010-03-19 Published:2010-03-19
  • Contact: Hou Lu, Chief physician, Second Clinical Medical College, Harbin Medical University, Harbin 150001, Heilongjiang Province, China
  • About author:Zhang Min★, Studying for master’s degree, Attending physician, Second Clinical Medical College, Harbin Medical University, Harbin 150001, Heilongjiang Province, China zhangmin81160125@yahoo.com.cn
  • Supported by:

    Science and Technology Project of Heilongjiang Province, No. 2006G0945-00*

PDF

367

被引次数

3

摘要：

背景：摩擦力的研究一直是正畸研究的热门话题，但对于加热前后弓丝与托槽间相对运动所产生的摩擦力变化国内尚未见相关报道。
目的：观察正畸用不锈钢丝进行低温加热处理后，对弓丝与托槽间摩擦力的影响。
方法：将正畸用不锈钢丝进行通电低温加热处理，利用扫描电镜观察弓丝表面形貌、确定弓丝的拉丝方向，然后置于摩擦力测试仪上测试不锈钢丝热处理前后摩擦力值。
结果与结论：扫描电镜下可见：相对于未经热处理弓丝，预热后弓丝的表面凸起不明显。方弓丝经热处理后摩擦力有所下降，进一步分析可见，热处理与未热处理后不锈钢丝对摩擦力影响无显著性意义，同一弓丝重复测量的结果差别无显著性意义，预热与否与重复测量的交互作用无显著性意义(P > 0.05)。结果表明，经热处理后的不锈钢丝，在弓丝与托槽滑动时不会增大摩擦力。

关键词: 弓丝, 热处理, 表面形貌, 摩擦力, 口腔生物材料

Abstract:

BACKGROUND: Friction is a hot topic of orthodontic science; however, changes between archwire and bracket before and after heat treatment have been less reported yet.
OBJECTIVE: To discuss the influence of the orthodontic stainless steel archwires after heat treatment at a low temperature on friction between the archwires and brackets.
METHODS: Orthodontic stainless steel archwires were heated at a low temperature. Surface morphology was observed under scanning electron microscope, the direction of drawing was then determined. Friction was measured before and after treatment.
RESULTS AND CONCLUSION: Scanning electron microscope demonstrated that surface of archwire which were not heated changed less. The friction was significantly decreased after heat treatment. Further analysis demonstrated that there was no significant difference in the friction between heated and non-heated archwires; moreover, there was also no significant difference of the same archwire before and after heat treatment (P > 0.05). Stainless steel could not increased the friction between archwires and bracket following heat treatment.

中图分类号: