Investigation of Shape Memory Polymers in Orthodontics

形状记忆聚合物在正畸中的研究

• 批准号: 6934948
• 负责人: Charles Burstone
• 金额: $ 9.98万
• 依托单位: NEW ORTHO POLYMERS
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2007-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6934948
• 关键词: biomaterial development /preparation; biomaterial evaluation; biotechnology; elasticity; hardness; mechanical stress; medical rehabilitation related tag; orthodontic appliances; polymers; surface property; temperature; tensile strength; thermostability

DESCRIPTION (provided by applicant): All orthodontic treatment is based on the application of optimal forces that minutely displace teeth initiating a biological response that alters both hard and soft tissues. Because of the precision of control, most treatment is carried out with fixed appliances that are capable of delivering forces and moments to the crowns of teeth. More limited treatment and retention of finished results can use removable appliances - appliances that are inserted and removed by the patient. This proposal is unique in advancing a new concept in orthodontics: the use of an intelligent polymer, Shape Memory Polymer (SMP), for use in both fixed and removable orthodontic appliances. SMP components have a number of advantages over shape memory alloys for orthodontics. These polymers can be developed to have a wide range of transition temperatures depending on their application. They can be fabricated into complex configurations with specialized designs and are more aesthetic than metal wires and attachments. Manufacturing techniques allow them to be produced at a low cost. Most important, SMP orthodontic components allow for a new approach and rationale for orthodontic treatment allowing more efficient and simpler therapy. The specific objectives of this Phase I program are: 1) optimize orthodontic appliance designs, 2) manufacture and characterize orthodontic prototypes, 3) tailor SMPs for specific orthodontic appliances, 4) establish and optimize stain resistance of prototypes, 5) determine the level and impact of moisture absorption, and 6) establish and understand SMP thermo mechanical properties as it applies to the orthodontic appliance prototypes.

描述（由申请人提供）： 所有的正畸治疗都是基于最佳力的应用，微小地移动牙齿，引发改变硬组织和软组织的生物反应。由于控制的精确性，大多数治疗都是用能够将力和力矩传递到牙冠的固定器具进行的。更有限的治疗和保留完成的结果可以使用可移动的器具-由患者插入和移除的器具。 该提案是独特的，在正畸学中提出了一个新的概念：使用一种智能聚合物，形状记忆聚合物（SMP），用于固定和可移动的正畸矫治器。SMP组件具有许多优于形状记忆合金的优点。这些聚合物可以根据其应用开发为具有宽范围的转变温度。它们可以制造成具有专门设计的复杂配置，并且比金属丝和附件更美观。制造技术使它们能够以低成本生产。最重要的是，SMP正畸组件为正畸治疗提供了一种新的方法和理论基础，使治疗更有效、更简单。 该第一阶段计划的具体目标是：1）优化正畸矫治器设计，2）制造和表征正畸原型，3）为特定正畸矫治器定制SMP，4）建立和优化原型的抗污染性，5）确定吸湿的水平和影响，以及6）建立和理解SMP热机械性能，因为它适用于正畸矫治器原型。