Kopp F R, Belser U C, Hess D
Int J Prosthodont. 1989 Jul-Aug;2(4):331-41.
A method of improving the esthetics and seal of porcelain crown margins using composite resin is described. The procedure includes a circumferential shoulder-type preparation located entirely in enamel. To provide adequate space for a thin layer of composite resin to blend gradually into both tooth enamel and porcelain surfaces, the cervical enamel as well as the opposing porcelain butt joint are subsequently beveled. In this study, microleakage analysis and SEM evaluation of the marginal area indicate that the marginal design described can predictably produce an optimal esthetic appearance and marginal seal, contour, and integrity with supragingival ceramic restorations.
描述了一种使用复合树脂改善瓷冠边缘美学效果和密封性的方法。该步骤包括完全位于牙釉质内的圆周肩台型预备。为了给一层薄薄的复合树脂提供足够的空间，使其逐渐融合到牙釉质和瓷表面中，随后对颈部牙釉质以及相对的瓷对接处进行斜面处理。在本研究中，对边缘区域的微渗漏分析和扫描电子显微镜评估表明，所描述的边缘设计能够可预测地产生最佳的美学外观、边缘密封性、外形和龈上陶瓷修复体的完整性。
