Department of Oral Health Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada.
Vancouver Academy of Digital Dentistry and Implantology (VADDI), Vancouver, BC, Canada.
J Prosthodont. 2021 Aug;30(7):632-635. doi: 10.1111/jopr.13373. Epub 2021 May 26.
A prosthetically-driven virtual implant plan is considered a challenging procedure depending on accurate registration of the three-dimensional optical surface scan and 3D volumetric rendering reconstructed from cone-beam computed tomography (CBCT) images. However, the presence of preexisting metal restorations may significantly negatively influence the registration process. This technical report describes a novel digital workflow to optimize the implant planning outcome for the partially edentulous patient with preexisting metal restorations by accurately aligning the standard triangle language data of the intraoral scanner with the CBCT rendering using a dual-scan technique and an appliance with radiographic markers.
基于锥形束计算机断层扫描（CBCT）图像重建的三维光学表面扫描和容积再现的精确配准，被认为是一种具有挑战性的修复体驱动式虚拟种植体规划程序。然而，预先存在的金属修复体可能会显著影响配准过程。本技术报告描述了一种新的数字化工作流程，通过使用双扫描技术和带有射线照相标记的器械，将口腔内扫描仪的标准三角语言数据与 CBCT 渲染准确对齐，从而优化存在预先存在金属修复体的部分牙列缺失患者的种植体规划结果。
