Resident, Advanced Prosthodontics Program, Division of Restorative Sciences and Prosthodontics, The Ohio State University College of Dentistry, Columbus, Ohio.
Associate Professor, Division of Restorative Sciences and Prosthodontics, The Ohio State University College of Dentistry, Columbus, Ohio.
J Prosthet Dent. 2018 Sep;120(3):343-352. doi: 10.1016/j.prosdent.2017.10.029. Epub 2018 Apr 5.
Intraoral scan body (ISB) design is highly variable and its role in the digital workflow and accuracy of digital scans is not well understood.
The purpose of this systematic review was to determine the relevant reports pertaining to ISBs with regard to design and accuracy and to describe their evolution and role in the digital dentistry workflow. Special attention was placed on their key features in relation to intraoral scanning technology and the digitization process.
A MEDLINE/PubMed search was performed to identify relevant reports pertaining to ISB usage in dentistry. This search included but was not limited to scan body features and design, scan body accuracy, and scan body techniques and the role of ISBs in computer-aided design and computer-aided manufacturing (CAD-CAM) processes. Commercially available scan bodies were examined, and a patient situation was shown highlighting the use of ISBs in the digital workflow.
Deficiencies in the reports were found regarding various scan body topics, including ISB features/design, accuracy, and the role of ISBs in CAD-CAM processes.
ISBs are complex implant-positioning-transfer devices that play an essential role in the digital workflow and fabrication of accurately fitting implant-supported restorations. With scanner technology rapidly evolving and becoming more widespread, future studies are needed and should be directed toward all parts of the digital workflow when using ISBs. By understanding the basic components of ISBs and how they relate to digital scanning and CAD-CAM technology, more emphasis may be placed on their importance and usage in the digital workflow to ensure accurate transfer of implant position to the virtual and analog definitive cast. Efforts should be made by clinicians to identify an optimal ISB design in relation to the specific intraoral scanning technology being used.
口内扫描体（ISB）设计具有高度可变性，其在数字化工作流程和数字扫描的准确性中的作用尚未得到很好的理解。
本系统评价的目的是确定与 ISB 设计和准确性相关的报告，并描述其在数字化牙科工作流程中的演变和作用。特别关注其与口内扫描技术和数字化过程相关的关键特征。
进行了 MEDLINE/PubMed 搜索，以确定与牙科中 ISB 使用相关的报告。该搜索不仅包括扫描体特征和设计、扫描体准确性，还包括扫描体技术以及 ISB 在计算机辅助设计和计算机辅助制造（CAD-CAM）流程中的作用。检查了市售的扫描体，并展示了一个患者情况，突出了 ISB 在数字化工作流程中的使用。
在各种扫描体主题方面发现了报告中的缺陷，包括 ISB 特征/设计、准确性以及 ISB 在 CAD-CAM 流程中的作用。
ISB 是复杂的植入物定位转移设备，在数字化工作流程和精确拟合植入物支持修复体的制造中起着至关重要的作用。随着扫描仪技术的快速发展和普及，未来需要进行研究，并且在使用 ISB 时应针对数字化工作流程的所有部分进行研究。通过了解 ISB 的基本组成部分以及它们与数字扫描和 CAD-CAM 技术的关系，可以更加重视它们在数字化工作流程中的重要性和使用，以确保将植入物位置准确地转移到虚拟和模拟最终模型中。临床医生应努力根据所使用的特定口内扫描技术确定最佳 ISB 设计。
