van Dijken J W, Hörstedt P
Department of Cariology, Dental School, Umeå, Sweden.
J Dent. 1994 Oct;22(5):265-72. doi: 10.1016/0300-5712(94)90055-8.
The marginal breakdown of fired porcelain inlays in vivo, luted with either a dual-cured resin composite or a glass polyalkenoate(ionomer) cement, was evaluated by scanning electron microscopy. Immediately following polishing (baseline) and after 1 year, replica impressions were made of the occlusal and proximal margins of two inlays, one cemented with the resin composite and the other with the glass ionomer cement, in each of 12 patients. At baseline the best marginal adaptation was observed along the proximal margins of the composite luted inlays, while occlusally glass ionomer luted inlays showed better marginal qualities than the composite luted inlays. At 1 year the composite luted inlays showed significantly better marginal adaptation than the glass ionomer luted ones at all interfaces. The greatest breakdown was observed occlusally, especially in the glass ionomer luted inlays. Gap sizes varied proximally between 83 and 100 microns and occlusally between 107 and 143 microns. Severe ditching was observed occlusally in the glass ionomer luted inlays. The overall marginal quality was significantly better for the inlays luted with the resin composite both at baseline and after 1 year.
采用扫描电子显微镜对采用双固化树脂复合材料或玻璃聚烯烃酸酯（聚羧酸锌）水门汀粘结的烤瓷嵌体在体内的边缘破损情况进行了评估。在12名患者中，分别对两颗嵌体（一颗用树脂复合材料粘结，另一颗用玻璃离子水门汀粘结）的咬合面和邻面边缘在刚抛光后（基线）以及1年后制作复制印模。在基线时，树脂复合材料粘结的嵌体沿邻面边缘观察到最佳边缘适应性，而在咬合面，玻璃离子水门汀粘结的嵌体比树脂复合材料粘结的嵌体显示出更好的边缘质量。1年后，在所有界面处，树脂复合材料粘结的嵌体比玻璃离子水门汀粘结的嵌体显示出明显更好的边缘适应性。最大的破损发生在咬合面，尤其是玻璃离子水门汀粘结的嵌体。邻面间隙大小在83至100微米之间，咬合面间隙大小在107至143微米之间。在玻璃离子水门汀粘结的嵌体的咬合面观察到严重的沟痕。在基线和1年后，树脂复合材料粘结的嵌体的整体边缘质量均明显更好。
