Ozcelik Tuncer Burak, Yilmaz Burak
Department of Prosthodontics, Faculty of Dentistry, Baskent University, Ankara, Turkiye.
Division of Restorative and Prosthetic Dentistry, College of Dentistry, The Ohio State University, Columbus, Ohio, USA.
Eur J Dent. 2013 Jul;7(3):373-376. doi: 10.4103/1305-7456.115426.
Metal ceramic partial fixed dental prostheses have been commonly used for the replacement of missing teeth for many years. Because of an increase in the price of gold, base metal alloys have been the choice of alloy for the fabrication of metal ceramic restorations in many dental clinics. Some major disadvantages of base metals are their corrosion and the dark coloration they may cause at the crown margins. This article describes a galvanic gold-plating technique, which is used to minimize corrosion and improve the esthetics of metal ceramic restorations fabricated with Cr-Co base metal alloys. This technique involves the deposition of a 6 μm to 8 μm 24 K gold layer directly onto the Cr-Co cast prosthesis framework. The technique improves metal surface properties, making them more biocompatible and usable, however, requires additional equipment and experienced laboratory technicians. Clinical studies should be performed to corroborate the long term success of this technique.
多年来，金属烤瓷局部固定义齿一直常用于缺失牙的修复。由于黄金价格上涨，贱金属合金已成为许多牙科诊所制作金属烤瓷修复体的合金选择。贱金属的一些主要缺点是它们的腐蚀性以及可能在冠边缘处导致的深色。本文介绍了一种电镀金技术，该技术用于将使用Cr-Co贱金属合金制作的金属烤瓷修复体的腐蚀降至最低并改善其美观性。该技术包括将6μm至8μm的24K金层直接沉积到Cr-Co铸造修复体框架上。该技术改善了金属表面性能，使其更具生物相容性且可用，然而，需要额外的设备和经验丰富的实验室技术人员。应进行临床研究以证实该技术的长期成功。
