热处理方式对多曲簧开闭口运动力值的影响  

Effect of Heat Treatment on the Forces of Buccal Multiloop Appliance during Mouth Opening and Closing Movement

作　　者：张博[1] 王培军[1] 徐实谦[2] 侯录[1] 王丽祺 

机构地区：[1]哈尔滨医科大学附属第二医院口腔正畸科,黑龙江哈尔滨150086 [2]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150001

出　　处：《口腔医学研究》2016年第12期1248-1251,共4页Journal of Oral Science Research

摘　　要：目的:研究热处理前后多曲簧在开闭口疲劳运动过程中的应力值、位移量及拐点的变化来为临床正畸提供参考。方法:通过拉伸-拐点-压缩实验模拟颊侧多曲簧矫治器在口内开闭口运动过程中的作用,研究不同热处理方式对应力值的影响。结果:通过多曲簧经先加热后弯制处理,可增大其开闭口运动过程的应力值及拐点位移量,其中480℃处理效果最明显。多曲簧先弯制后热处理对其拉压过程中拐点位移量基本没有影响。结论:制作颊侧多曲簧时,牙用不锈钢丝可先经480℃热处理后再弯制,可提高机械性能。Objective：To evaluate the effect of heat treatment on the forces of buccal multiloop appliance during mouth opening and closing movement.Methods：Stretch-inflection-compression experiment was used to simulate the buccal multiloop appliance during mouth opening and closing movement.Different kinds of heat treatment were discussed in this article.Results：The forces and displacement distance of the buccal multiloop appliance during mouth opening and closing movement increased when it was bended after heat treatment,among which 480℃ was the most obvious.It showed no effect on the displacement distance when it was bended before heat treatment.Conclusion：When making buccal multiloop,the mechanical property of loop can be improved provided the heat temperature was 480℃ and the loop was bended afterwards.

关 键 词：颊侧多曲簧 热处理温度 压缩拉伸应力值 错矫治 

分 类 号：R783.5[医药卫生—口腔医学]