Edelhoff Daniel, Schweiger Josef, Prandtner Otto, Stimmelmayr Michael, Güth Jan-Frederik
Quintessence Int. 2019;50(3):176-184. doi: 10.3290/j.qi.a41906.
In many areas of restorative dentistry, metal-free materials offer an alternative to metal-based restorations while ensuring high levels of biocompatibility and esthetics. Rapidly evolving CAD/CAM technology has significantly expanded the range of materials available, providing access to materials classes and their combinations not previously available within conventional manufacturing, such as zirconia ceramics and hybrid ceramics. In addition, digital methods offer previously unavailable options in diagnostics, greater planning reliability, better material quality through standardization of the manufacturing process, and reproducibility - significant benefits that can be used to advantage, especially in oral implantology. Even though technological progress in the field of metal-free materials has given rise to considerable improvements in their mechanical properties over the decades, their clinical long-term success is still very much dependent on an appropriate indication and proper material selection, on the knowledge and skills of the dental practitioner and dental technician, and on an adequate occlusion concept. The high rate of innovation - both with regard to the materials themselves and to CAD/CAM technology - therefore requires an adequate level of prior knowledge to sensibly and successfully implement the wide range of possibilities now open. It is becoming more and more puzzling for users to find their way around the many different new techniques and materials. This review article provides an up-to-date overview of the possibilities and limitations of metal-free implant-supported single-tooth restorations. This first part discusses abutments and cemented crowns. Resultant treatment concepts are presented and evaluated based on clinical examples.
在口腔修复学的许多领域，无金属材料可替代金属基修复体，同时确保高度的生物相容性和美观性。快速发展的CAD/CAM技术显著扩大了可用材料的范围，使人们能够使用传统制造中以前无法获得的材料类别及其组合，如氧化锆陶瓷和混合陶瓷。此外，数字方法在诊断方面提供了以前无法获得的选择，提高了治疗计划的可靠性，通过制造过程的标准化提高了材料质量，并具有可重复性——这些显著优势尤其可在口腔种植学中发挥作用。尽管几十年来无金属材料领域的技术进步使其机械性能有了相当大的改善，但其临床长期成功仍在很大程度上取决于合适的适应症和正确的材料选择、牙科医生和牙科技师的知识与技能，以及适当的咬合概念。因此，无论是材料本身还是CAD/CAM技术，创新速度都很高，这就需要有足够的先验知识，才能明智且成功地利用现有的广泛可能性。用户越来越难以在众多不同的新技术和材料中找到方向。这篇综述文章提供了关于无金属种植体支持的单颗牙修复的可能性和局限性的最新概述。第一部分讨论基台和粘结冠。基于临床实例介绍并评估了由此产生的治疗概念。
