Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, Massachusetts.
Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, New York.
J Esthet Restor Dent. 2018 Jan;30(1):5-13. doi: 10.1111/jerd.12323. Epub 2017 Aug 9.
To illustrate a digital workflow in full-arch implant rehabilitation with minimally veneered monolithic zirconia and to report the outcomes including technical complications.
Three patients (5 edentulous arches) received full-arch fixed implant rehabilitation with monolithic zirconia and mild facial porcelain veneering involving a digital workflow. The incisal edges and occluding surface areas were milled out of monolithic zirconia to reduce the possibility of chipping. Porcelain veneering was applied on the facial aspect to improve the esthetic result. Outcomes and technical complications are reported after 2 years of clinical and radiographic follow-up.
Implant and prosthesis survival rates were 100% after a short-term follow-up of 2 years. Technical complications were encountered in one patient. They did not adversely affect prosthesis survival or patient satisfaction and were easily addressed. A digital workflow for the design and fabrication of full-arch monolithic zirconia implant fixed implant prostheses has benefits, but caution is necessary during CAD planning of the prosthesis to ensure a successful outcome. Long-term clinical studies are needed to corroborate the findings discussed in this report.
This article presents an integrated digital workflow that was implemented for the implant-prosthodontic rehabilitation of three edentulous patients with monolithic zirconia prostheses. Monolithic zirconia has been successfully incorporated in implant prosthodontics in an effort to reduce the technical complications associated with bilayered ceramics. This workflow simplifies design and fabrication of the zirconia prostheses. However, caution should be taken during CAD planning of the prosthesis to make sure the zirconia cylinder is sufficiently thick at the interface with the titanium insert. Additionally, when cutback is planned for facial porcelain veneering, the functional occluding cusps and incisal edges should be fabricated in monolithic zirconia to avoid chipping.
展示全口种植修复中采用轻度饰面的整体氧化锆的数字化工作流程，并报告包括技术并发症在内的治疗效果。
三名患者（5 个无牙颌）接受了采用整体氧化锆和轻度面瓷贴面的全口固定种植修复，涉及数字化工作流程。切缘和咬合面区域采用整体氧化锆铣削，以降低崩瓷的可能性。在唇面应用瓷贴面以改善美观效果。在临床和影像学随访 2 年后报告治疗效果和技术并发症。
在 2 年的短期随访后，种植体和修复体的存活率均为 100%。一名患者出现了技术并发症。这些并发症并未对修复体存活率或患者满意度产生不利影响，且易于解决。全口氧化锆种植固定修复体的数字化设计和制作工作流程具有优势，但在进行修复体 CAD 设计时需要谨慎，以确保获得成功的治疗效果。需要进行长期的临床研究来证实本报告中讨论的发现。
本文介绍了一种综合的数字化工作流程，该流程已应用于三名无牙颌患者的种植修复体修复中，采用整体氧化锆修复体。为了减少与双层陶瓷相关的技术并发症，整体氧化锆已成功应用于种植修复体中。该工作流程简化了氧化锆修复体的设计和制作。但是，在进行修复体 CAD 设计时应谨慎，以确保氧化锆圆柱体在与钛植入物的界面处具有足够的厚度。此外，当计划进行面瓷贴面的回切时，应在整体氧化锆中制作功能咬合嵴和切缘，以避免崩瓷。
