Al-Hamadani K K, Crabb H S
J Oral Rehabil. 1975 Jan;2(1):21-33. doi: 10.1111/j.1365-2842.1975.tb00908.x.
The historical development and important properties of composite resins are briefly reviewed. Experimental work has been undertaken to examine the marginal adaptation of three commerically available composite resins in 100 Class II and Class V restorations; dye penetration tests were used and measurement of the gap at the tooth/restoration interface as recorded in photographs obtained by scanning electron microscopy of replicas. In Class V restorations showing marginal leakage by dye penetration the gap at the tooth/restoration interface was in all cases greater cervically than occlusally. The results underline the uncertainly of obtaining a good marginal seal with composite resins both peripherally and along internal line angles.
本文简要回顾了复合树脂的历史发展和重要特性。已开展实验研究，以检查三种市售复合树脂在100个II类和V类修复体中的边缘适应性；采用了染料渗透试验，并通过对复制品进行扫描电子显微镜拍摄的照片来测量牙齿/修复体界面处的间隙。在通过染料渗透显示边缘渗漏的V类修复体中，牙齿/修复体界面处的间隙在所有情况下颈部都比咬合面处更大。结果强调了在周边以及沿着内线角使用复合树脂获得良好边缘封闭的不确定性。
