基于CT数据的三维配准技术在正畸中的应用

Application of three dimensional registration based on CT data for orthodontics

介绍目前医学三维图像配准技术的发展与临床需求,重点从口腔医学尤其是从口腔正畸学角度说明三维图像特征性标志点配准技术的临床应用价值,通过临床研究分类阐述配准技术在探索正畸作用机制和评价正畸治疗效果中的作用。通过治疗前后的CT数据配准,评价正畸治疗后牙齿的移动形式,牙槽骨的改建状况,以及软组织的适应性改变。三维配准技术为研究正畸的作用机制和治疗效果提供了一种可靠的研究手段,对于促进口腔医学临床三维评价有一定的指导意义。

In recent years, three dimensional imaging registration has been developed rapidly in clinics. Medical image registration plays an important role in the research of orthodontic image processing field. In this study, we introduce the applications of CT registration on several clinical cases. After the registration of the pre-and post-treatment CT data, the position changes of teeth and the modeling of alveolar bone and the adaptive changes of soft tissue can be assessed precisely respectively. The three dimensional registration provides us a new and precise method to study the outcome and mechanism of orthodontics. And more studies of three dimensional registration should be performed to promote three dimensional oral medical assessment researches.