In vitro assessment of shape memory effect and pseudoelastic response of smarter alloy shape memory alloy orthodontic archwire

智能合金形状记忆合金正畸弓丝形状记忆效应和伪弹性响应的体外评估

• 批准号: 514534-2017
• 负责人: Carey, Jason
• 金额: $ 0.11万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=646853
• 关键词: vitro; assessment; shape; memory; effect

As Canadians continue to place added significance on their oral health, research in this area has become**increasingly important. One key area of interest is orthodontic treatment. In orthodontic treatment using braces,**the archwire is the key element that delivers loads to teeth through brackets which are attached to the tooth. As**such, research into the biomechanics of archwires is imperative in the understanding of how applied loads**effect tooth movement throughout treatment. Smarter Alloys Inc. has developed a process by which they alter**the local material characteristics of nickel-titanium based shape memory alloy (SMA) archwires. This allows**clinicians the option of variable stiffness around an archwire, thereby facilitating tooth movement in certain**regions while preventing it in others. The Orthodontic Biomechanics Testing and Development Group at the**University of Alberta has a suite of experimental simulation equipment to study the biomechanics of**orthodontic appliances. They allow for the study of rotational mechanics between a single bracket and**archwire, the friction between a bracket and archwire as they slide relative to one another, and the propagation**of loads around the arch. These pieces of equipment will be utilized to measure the loads generated by**processed archwires using Smarter Alloys techniques as well as conventional SMA archwires. Experimental**findings will elucidate how processing of SMA archwires influences their interactions with brackets and how**these processed archwires compare to those typically used in orthodontic treatment. This work will provide**Smarter Alloys with valuable information allowing for the improvement of their product as well as**significantly contribute to the study of orthodontic biomechanics on the whole.

随着加拿大人继续对口腔健康提高重要性，这一领域的研究变得越来越重要。感兴趣的关键领域是正畸治疗。在使用牙套的正畸治疗中，**弓形线是通过附着在牙齿上的支架向牙齿延伸到牙齿的关键元素。如**这样，必须研究弓形线的生物力学，在理解施加载荷的方式**整个治疗过程中的影响牙齿运动时必须进行。 Smarter Alloys Inc.开发了一个过程，通过该过程，它们改变了**基于镍 - 丁烷的形状记忆合金（SMA）Archwires的局部材料特征。这使**临床医生可以选择在弓形线周围可变刚度，从而促进某些**区域的牙齿运动，同时在其他区域进行防止。艾伯塔省**大学的正畸生物力学测试和开发小组设有一套实验模拟设备，可研究**正畸电器的生物力学。它们允许研究单个支架和** Archwire之间的旋转力学，当它们相对于彼此滑动时，支架和Archwire之间的摩擦以及拱门周围的载荷的传播**。这些设备将用于测量使用更智能合金技术以及常规的SMA ArchWires所产生的**加工拱门产生的负载。实验**的发现将阐明SMA Archwires的处理如何影响其与支架的相互作用，以及这些加工后的弓形系与正畸治疗中通常使用的弓形线相比。这项工作将为**更智能的合金提供有价值的信息，以改善其产品，并且**总体上有助于研究正畸生物力学。