A Paradigm Shift Using Scan Bodies to Record the Position of a Complete Arch of Implants in a Digital Workflow.

IF 1.3 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Graziano D Giglio, Ana Becil Giglio, Dennis P Tarnow
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引用次数: 0

Abstract

The use of conventional scan bodies (SBs) with an intraoral scanner (IOS) to capture the position of a complete arch of dental implants has proven to be challenging. The literature is unclear about the accuracy of intraoral scanning techniques using SBs that are connected vertically to multiunit abutments (MUAs) for numerous adjacent implants in the same arch. Recently, there has been a paradigm shift from vertical SBs to horizontal SBs, which are positioned perpendicular to the long axis of the MUAs. Most IOSs available today can capture these horizontal SBs, called scan gauges (SGs), with better accuracy and consequently acquire the position of multiple adjacent implants using an effective scan path, thus reducing stitching and the number of images. The key to implementing this novel technology is to strategically arrange the SGs to optimize horizontal overlap of multiple adjacent SGs without touching each other. By superimposing two high-resolution intraoral scans of the SGs, an artificial intelligence (AI) algorithm is employed to produce a calibrated digital best-fit model on which a passive complete-arch prosthesis can be designed and fabricated. The advantages and disadvantages of SBs and SGs are discussed, and a case report using a digital workflow is presented.

在数字化工作流程中使用扫描体记录完整牙弓种植体位置的范式转变。
事实证明,使用传统的扫描体(SB)和口内扫描仪(IOS)来捕捉完整牙弓的种植体位置是一项挑战。对于使用垂直连接到多单位基台(MUAs)的 SB(用于同一牙弓中的多个相邻种植体)进行口内扫描技术的准确性,目前尚无明确的文献资料。最近,口内扫描的模式已经从垂直 SB 转变为水平 SB,即垂直于 MUAs 长轴的 SB。目前大多数的 IOS 都能以更高的精度捕捉这些水平 SB(称为扫描规(SG)),从而通过有效的扫描路径获取多个相邻种植体的位置,从而减少拼接和图像的数量。实施这项新技术的关键在于战略性地布置 SG,以优化多个相邻 SG 的水平重叠,而不会相互接触。通过叠加两个SG的高分辨率口内扫描图像,采用人工智能(AI)算法生成一个校准过的数字最佳拟合模型,并在此基础上设计和制作被动式全牙弓修复体。本文讨论了 SB 和 SG 的优缺点,并介绍了一份使用数字化工作流程的病例报告。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.90
自引率
6.20%
发文量
113
审稿时长
6-12 weeks
期刊介绍: The International Journal of Periodontics & Restorative Dentistry will publish manuscripts concerned with all aspects of clinical periodontology, restorative dentistry, and implantology. This includes pertinent research as well as clinical methodology (their interdependence and relationship should be addressed where applicable); proceedings of relevant symposia or conferences; and quality review papers. Original manuscripts are considered for publication on the condition that they have not been published or submitted for publication elsewhere.
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