Abstract：
Digital implant planning, utilizing the convergence of digital surface scanners, cone beam computer tomography (CBCT) scans, and advanced planning software, has transformed dental implantology. The merging of these data sets through triangulation of landmarks provides a detailed digital model of the jaws, facilitating precise implant positioning in edentulous areas. A critical step in this digital workflow is the accurate merging of DICOM files with STL/PLY/OBJ files, which underpins the design and fabrication of surgical templates for accurate implant placement. Errors in this phase can lead to implant mispositioning or damage to adjacent structures. Particularly in partial edentulism, the merging is based on the occlusal topography of the remaining teeth but scattering in the CBCT data-caused by interactions of radiation with radiodense materials-can complicate this process or even render it impossible. The manuscript presents a technique utilizing radiopaque markers to overcome scattering effects, ensuring accurate dataset superimposition in the mandible.
摘要：
数字化植入规划,利用数字表面扫描仪的融合，锥形束计算机断层扫描(CBCT)扫描,和先进的规划软件，改变了牙科种植学。通过对地标进行三角测量来合并这些数据集，从而提供了详细的颌骨数字模型，促进精确的植入物定位在无牙区域。这个数字工作流程中的关键步骤是DICOM文件与STL/PLY/OBJ文件的准确合并，这支撑了手术模板的设计和制造，以实现精确的植入物放置。该阶段中的错误可导致植入物错位或对相邻结构的损坏。特别是在部分思想主义中，合并是基于剩余牙齿的咬合形貌，但是由于辐射与放射性材料的相互作用而引起的CBCT数据中的散射会使这一过程复杂化甚至使其变得不可能。手稿提出了一种利用不透射线的标记来克服散射效应的技术，确保准确的数据集叠加在下颌骨。
