Private Practice, Via Nizza, 46, 00198 Rome, Italy.
Private Practice, Via Benincasa, 11, 84013 Cava de' Tirreni, Italy.
Int J Environ Res Public Health. 2018 Nov 23;15(12):2623. doi: 10.3390/ijerph15122623.
Transferring precise information to the dental laboratory is one of the key factors to achieving clinical success. The aim of the present study was to describe classical and digital work-flows used to rehabilitate an implant with a convergent collar in the aesthetic zone following the BOPT (biologically oriented preparation technique) approach and to report the three years follow-up outcomes of two patients rehabilitated following such procedures.
Two central incisors of two different patients were rehabilitated with a tissue-level implant with a convergent collar and, after a provisional and healing phase, one implant was "impressed" using a classical workflow and one using a digital one. The primary outcome measured was the mean bone loss. An intraoral radiograph was taken at crown delivery and at the three years follow-up visit. Secondary Esthetic outcomes pre-op and post-op were evaluated using the PES (pink esthetic score).
At the three years follow-up visit, radiographic analysis showed no signs of bone resorption. For the analogic procedure, the pre-and post-op PES scores were 8, whereas for the digital procedure the pre-op PES score was 4 and a post-op score of 9 was obtained.
classical and digital work flows succeeded in giving precise and complete anatomical information of implant position, including the soft tissue contour. Minimum bone loss and an esthetic success were obtained in both procedures.
将精确的信息传递给牙科实验室是实现临床成功的关键因素之一。本研究的目的是描述用于修复美学区域中具有会聚颈的种植体的经典和数字化工作流程，遵循 BOPT（生物导向预备技术）方法，并报告两名患者按照这些程序进行修复后的三年随访结果。
两名不同患者的两颗中切牙采用具有会聚颈的组织水平种植体进行修复，在临时修复和愈合阶段后，一颗种植体使用经典工作流程进行“印模”，另一颗使用数字化工作流程进行“印模”。主要测量的结果是平均骨损失。在牙冠交付时和三年随访时拍摄口腔内射线照片。使用 PES（粉红色美学评分）评估术前和术后的次要美学结果。
在三年随访时，放射学分析显示没有骨吸收的迹象。对于模拟程序，PES 评分的术前和术后分别为 8，而对于数字程序，术前 PES 评分为 4，术后获得 9 分。
经典和数字化工作流程成功地提供了种植体位置的精确和完整的解剖信息，包括软组织轮廓。两种程序均获得了最小的骨损失和美学成功。
