口腔正畸丝断裂的力学分析  

Mechanics Analysis of Fracture of Orthodontic Wires

作　　者：王野平[1] 孙晓晔 张隆祺[3] 

机构地区：[1]同济大学机械工程学院,上海200331 [2]上海汽车齿轮总厂,上海201800 [3]同济大学附属同济医院,上海200065

出　　处：《生物医学工程学杂志》2003年第1期35-37,共3页Journal of Biomedical Engineering

基　　金：铁道部科技发展基金资助项目 ( B97-66)

摘　　要：对口腔正畸丝折断问题进行了分析 ,推导出口腔正畸丝中弯曲应力和拉应力的计算公式 ,对影响弯曲应力和拉应力的各种因素进行了分析和讨论。认为疲劳破坏和静强度破坏是导致正畸丝断裂的主要原因。Fracture problem of orthodontic wires was discussed in this paper. The calculation formulae of bending stress and tensile stress were obtained. All main factors that affect bending stress and tensile stress of orthodontic wires were analyzed and discussed. It was concluded that the main causes of fracture of orthodontic wires were fatigue and static disruption. Some improving proposals for preventing fracture of orthodontic wires were put forward.

关 键 词：口腔正畸丝 断裂 力学分析 

分 类 号：R318.01[医药卫生—生物医学工程]