Ghafoor Hajra
Private Practice, Hyderabad, India.
Turk J Orthod. 2018 Dec;31(4):139-144. doi: 10.5152/TurkJOrthod.2018.18027. Epub 2018 Dec 1.
Three-dimensional (3D) imaging has advanced greatly and is used extensively in orthodontics. It is worth outlining and reviewing the developments of reverse engineering (RE) as its applications are growing more widespread and diverse. Data from an existing object are used to create a digital model. A traditional RE process is usually performed in these stages: (1) obtaining data, (2) restructuring the surfaces, and (3) creating a useful model. They are classified as (1) laser projection based and (2) fringe projection based. This digital technology has been used in creating 3D model scanning, 3D digital model superimposition, diagnostic setup, volumetric assessment of tooth wear, soft tissue facial analysis, incorporation of digital model to 3D facial image, lip position and smile reproducibility, analysis of tooth position after orthodontic treatment, and anthropometric measurements. This system has proven itself to have a varied probability of applications and researches in the field of orthodontics. Similar to every single system, even RE has its own benefits and shortcomings. The complexity of the process and high cost are the major disadvantages reported so far. Rapid advancement of this technology possibly will rapidly inverse the negative results that emerged previously. As a future work, innovative use of RE technology is necessary to make this system triumph in the field of orthodontics.
三维（3D）成像技术取得了长足的进步，在正畸领域得到了广泛应用。鉴于逆向工程（RE）的应用日益广泛和多样，有必要对其发展进行概述和回顾。利用现有物体的数据创建数字模型。传统的逆向工程过程通常分以下几个阶段进行：（1）获取数据，（2）重构曲面，（3）创建有用的模型。它们可分为（1）基于激光投影的和（2）基于条纹投影的。这种数字技术已被用于创建3D模型扫描、3D数字模型叠加、诊断设置、牙齿磨损的体积评估、软组织面部分析、将数字模型融入3D面部图像、嘴唇位置和微笑再现性、正畸治疗后牙齿位置分析以及人体测量。该系统已证明自身在正畸领域具有多种应用和研究可能性。与每个系统一样，即使是逆向工程也有其自身的优点和缺点。到目前为止，该过程的复杂性和高成本是主要缺点。这项技术的快速发展可能会迅速扭转之前出现的负面结果。作为未来的工作，有必要创新使用逆向工程技术，以使该系统在正畸领域取得成功。
