Sorensen J A, Choi C, Fanuscu M I, Mito W I
Department of Fixed Prosthodontics, Oregon Health Sciences University, Portland, USA.
Signature. 1997;4(3 Suppl):14-9.
Although porcelain-fused-to-metal (PFM) restorations are the most widely used full-coverage crown restoration systems, their inherent properties make the achievement of natural aesthetic restorations an elusive task. In contrast, the all-ceramic system (IPS Empress, Ivoclar North America, Amherst, NY) offers excellent translucency and vitality, without the opacity associated with PFM restorations. Its vitality is further enhanced by an adhesive resin cementation method that conducts the color of the underlying tooth structure. This article reports the status of a 5-year investigation, initiated in 1992, of the clinical performance of the IPS Empress all-ceramic system and the resin cementation system used with it.
尽管烤瓷熔附金属（PFM）修复体是应用最为广泛的全冠修复系统，但其固有特性使得实现自然美观的修复成为一项难以完成的任务。相比之下，全瓷系统（IPS Empress，义获嘉北美公司，纽约州阿默斯特）具有出色的透明度和逼真度，不存在与PFM修复体相关的不透明度。通过传导基牙结构颜色的粘结树脂粘结方法，其逼真度进一步提高。本文报告了一项始于1992年的对IPS Empress全瓷系统及其所用树脂粘结系统临床性能的5年调查情况。
