Liu Chunxu, Tew In Meei, Leong Xin-Fang, Mohd-Said Shahida
Int J Comput Dent. 2025 Sep 1;28(3):283-294. doi: 10.3290/j.ijcd.b6429781.
The present article describes a dental implant planning workflow to solve the CBCT artifact problem. The technique uses a radiopaque 3D-printed tray to take impressions and complete data alignment of the dental arches where implants are planned. From the impressions, 3D Boolean inversion is performed to obtain the surface mesh of teeth and virtually remove the undercut of dentition mesh before an implant surgical guide is designed. The trueness and precision of 3D alignment are then compared with the original radiographic template alignment using the double-scan method. In the present study, the results showed that this method could improve alignment trueness and allow for the elimination of radiographic template making, reducing patient visits and making possible a same-day guided implant surgery.
本文介绍了一种用于解决锥形束计算机断层扫描（CBCT）伪影问题的牙种植体规划工作流程。该技术使用不透射线的3D打印托盘进行印模，并完成计划植入种植体的牙弓的数据对齐。从印模中，进行3D布尔反转以获得牙齿的表面网格，并在设计种植体手术导板之前虚拟去除牙列网格的倒凹。然后使用双扫描方法将3D对齐的准确性和精度与原始放射照相模板对齐进行比较。在本研究中，结果表明该方法可以提高对齐准确性，并消除放射照相模板的制作，减少患者就诊次数，并使当日引导种植手术成为可能。
