University Hospital Heidelberg, Department of Maxillo- and Craniofacial Surgery, D-69120 Heidelberg, Germany.
Int J Oral Maxillofac Surg. 2010 Jan;39(1):75-82. doi: 10.1016/j.ijom.2009.10.023. Epub 2009 Dec 14.
This study presents a computer-assisted planning system for dysgnathia treatment. It describes the process of information gathering using a virtual articulator and how the splints are constructed for orthognathic surgery. The deviation of the virtually planned splints is shown in six cases on the basis of conventionally planned cases. In all cases the plaster models were prepared and scanned using a 3D laser scanner. Successive lateral and posterior-anterior cephalometric images were used for reconstruction before surgery. By identifying specific points on the X-rays and marking them on the virtual models, it was possible to enhance the 2D images to create a realistic 3D environment and to perform virtual repositioning of the jaw. A hexapod was used to transfer the virtual planning to the real splints. Preliminary results showed that conventional repositioning could be replicated using the virtual articulator.
本研究提出了一种用于正颌治疗的计算机辅助规划系统。它描述了使用虚拟𬌗架收集信息的过程，以及如何为正颌手术构建𬌗板。在基于传统规划病例的基础上，在六个病例中显示了虚拟规划𬌗板的偏差。在所有病例中，都使用石膏模型和三维激光扫描仪进行扫描。在手术前，使用连续的侧位和后前位头颅侧位片进行重建。通过在 X 光片上识别特定点并在虚拟模型上标记它们，可以增强 2D 图像以创建逼真的 3D 环境，并进行下颌的虚拟复位。六足架用于将虚拟规划转移到真实的𬌗板上。初步结果表明，使用虚拟𬌗架可以复制传统的复位。
