Ireland A J, McNamara C, Clover M J, House K, Wenger N, Barbour M E, Alemzadeh K, Zhang L, Sandy J R
Bristol Dental School, Bristol.
Br Dent J. 2008 Oct 11;205(7):387-92. doi: 10.1038/sj.bdj.2008.845.
3D imaging has been widely used within various fields of dentistry to aid diagnosis, in treatment planning and appliance construction. Whereas traditionally this has involved the use of impression materials together with plaster or stone models, modern techniques are continually evolving which use virtual 3D images. These electronic virtual images are created using either contact or non-contact optical scanning techniques, but there are limitations, the most important of which is that any new virtual surface image is created from a series of discrete data points. It is not created from a continuous stream of data relating to the original object. This means that computer software has to be used to recreate a possible best fit, virtual surface from the data obtained. This paper describes the principles behind 3D scanning technology, the limitations of 3D imaging as well as current and possible uses of such imaging in clinical dentistry.
三维成像已在牙科的各个领域中广泛应用，以辅助诊断、治疗计划制定和矫治器制作。传统上，这涉及使用印模材料以及石膏或石质模型，而现代技术在不断发展，采用虚拟三维图像。这些电子虚拟图像是使用接触式或非接触式光学扫描技术创建的，但存在局限性，其中最重要的是任何新的虚拟表面图像都是从一系列离散的数据点创建的。它不是从与原始物体相关的连续数据流创建的。这意味着必须使用计算机软件从获得的数据中重新创建一个可能的最佳拟合虚拟表面。本文描述了三维扫描技术背后的原理、三维成像的局限性以及这种成像在临床牙科中的当前和可能用途。
