Private Practice, Via Leonida Laforgia, Bari, Italy.
Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.
J Prosthodont Res. 2023 Jul 31;67(3):321-336. doi: 10.2186/jpr.JPR_D_22_00107. Epub 2022 Oct 3.
The aim of this network meta-analysis is to evaluate the accuracy of various face-scanning technologies in the market, with respect to the different dimensions of space (x, y, and z axes). Furthermore, attention will be paid to the type of technologies currently used and to the best practices for high-quality scan acquisition.
The review was conducted following the PRISMA guidelines and its updates. A thorough search was performed using the digital databases MEDLINE, PubMed, EMBASE, and the Cochrane Central Register of Controlled Trials by entering research lines or various combinations of free words. The main keywords used during the search process were "photogrammetry", "laser scanner", "optical scanner", "3D", and "face".
None of the included technologies significantly deviated from direct anthropometry. The obtained mean differences in the distances between the considered landmarks range from 1.10 to -1.74 mm.
Limiting the movements of the patient and scanner allows for more accurate facial scans with all the technologies involved. Active technologies such as laser scanners (LS), structured light (SL), and infrared structured light (ISL) have accuracy comparable to that of static stereophotogrammetry while being more cost-effective and less time-consuming.
本网络荟萃分析旨在评估市场上各种面扫描技术在不同空间维度（x、y 和 z 轴）上的准确性。此外，还将关注当前使用的技术类型和高质量扫描采集的最佳实践。
本综述遵循 PRISMA 指南及其更新进行。通过输入研究行或各种自由词的组合，使用 MEDLINE、PubMed、EMBASE 和 Cochrane 对照试验中心注册数据库进行了全面搜索。在搜索过程中使用的主要关键词是“摄影测量”、“激光扫描仪”、“光学扫描仪”、“3D”和“面部”。
没有一种纳入的技术与直接人体测量法有显著差异。所考虑标志点之间距离的平均差异在 1.10 至-1.74 毫米之间。
限制患者和扫描仪的运动可以使所有涉及的技术对面部进行更精确的扫描。主动技术，如激光扫描仪（LS）、结构光（SL）和红外结构光（ISL），其准确性可与静态体视摄影测量相媲美，同时具有更高的成本效益和更少的时间消耗。
