Imburgia M, Kois J, Marino E, Lerner H, Mangano F G
Private Practice, Palermo, Italy.
Kois Center, Private Practice, Seattle (WA) USA; Assistant Professor, University of Washington, Seattle (WA), USA.
Eur J Prosthodont Restor Dent. 2020 Aug 31;28(3):128-141. doi: 10.1922/EJPRD_2105Imburgia14.
To present the results obtained with the "Continuous Scan Strategy" (CSS), a direct intraoral scanning technique based on the connection of the implant scan bodies (SBs) with thermoplastic resin.
40 patients were restored with 45 long-span monolithic implant-supported zirconia restorations (10 partial prostheses [PP] and 35 full arches [FA]) fabricated via a full-digital workflow after the capture of an intraoral impression (Trios3®) using the CSS technique. The primary outcomes were the marginal adaptation and passive fit of the superstructures, checked at T0 (intraoral try-in of polyurethane or metal replica of the final prosthesis) and T1 (delivery of the final zirconia restoration). The secondary outcomes, registered at T2 (2 years after the delivery of the final prosthesis), were implant survival, prosthetic success, and complications. A throughout statistical analysis was performed.
At T0, 40/45 replicas demonstrated a perfect passive fit and adaptation. At T1, one prosthesis had fractured, and at T2, an additional prosthesis had fractured and one had chipped. The implant survival rate was 100%. The prosthetic success was 93.3%.
CSS seems to represent a viable option for capturing accurate intraoral digital impressions for the fabrication of precise long-span implant-supported restorations.
展示采用“连续扫描策略”（CSS）所获得的结果，这是一种基于种植体扫描体（SBs）与热塑性树脂连接的直接口内扫描技术。
40例患者采用45个大跨度整体式种植体支持的氧化锆修复体进行修复（10个局部义齿[PP]和35个全牙弓[FA]），在使用CSS技术获取口内印模（Trios3®）后，通过全数字工作流程制作。主要结果是在T0（最终修复体的聚氨酯或金属复制品的口内试戴）和T1（最终氧化锆修复体交付）时检查上部结构的边缘适应性和被动就位情况。在T2（最终修复体交付后2年）记录的次要结果是种植体存活率、修复成功率和并发症情况。进行了全面的统计分析。
在T0时，45个复制品中有40个显示出完美的被动就位和适应性。在T1时，有一个修复体断裂，在T2时，又有一个修复体断裂，一个有崩瓷。种植体存活率为100%。修复成功率为93.3%。
CSS似乎是一种可行的选择，可用于获取精确的口内数字印模，以制作精确的大跨度种植体支持的修复体。
