Fukushima T, Horibe T
Department of Dental Materials and Devices, Fukuoka Dental College, Japan.
J Dent Res. 1990 Jan;69(1):46-50. doi: 10.1177/00220345900690010701.
Three types of methacryloyloxyalkyl hydrogen maleates--2-(methacryloyloxy)ethyl hydrogen maleate (2MEM), 1-(methacryloyloxy-methyl)ethyl hydrogen maleate (MMEM), and 1-(methacryloyloxymethyl)propyl hydrogen maleate (MMPM)--were prepared for use as bonding agents. The relationships between the thickness of an acid-proof dentin layer and the bond strength and chemical structure of the synthesized monomers were investigated. The bond strengths of 2MEM/composite system to dentin treated with either 37% phosphoric acid solution or 10% citric acid-3% ferric chloride solution (10-3 solution) were superior to those of the others. The acid-proof dentin layer for all bonding agents containing the synthesized monomers at the resin-dentin interface was clearly visible in a scanning electron microscope, regardless of the types of dentin etching agents used. After treatment of the dentin with the phosphoric acid solution, the layers of 2MEM, MMEM, and MMPM were 5-6 micron, 3-4 micron, and 2-3 micron thick, respectively. When the dentin was treated with the 10-3 solution, the layer for each bonding agent was approximately 1 micron thick.
制备了三种马来酸氢甲基丙烯酰氧基烷基酯——马来酸氢（2 - 甲基丙烯酰氧基）乙酯（2MEM）、马来酸氢（1 - 甲基丙烯酰氧基甲基）乙酯（MMEM）和马来酸氢（1 - 甲基丙烯酰氧基甲基）丙酯（MMPM），用作粘结剂。研究了耐酸牙本质层厚度与合成单体的粘结强度及化学结构之间的关系。2MEM/复合材料体系与用37%磷酸溶液或10%柠檬酸 - 3%氯化铁溶液（10 - 3溶液）处理过的牙本质之间的粘结强度优于其他体系。在扫描电子显微镜下，无论使用何种牙本质蚀刻剂，在树脂 - 牙本质界面处含有合成单体的所有粘结剂的耐酸牙本质层都清晰可见。用磷酸溶液处理牙本质后，2MEM、MMEM和MMPM的层分别为5 - 6微米、3 - 4微米和2 - 3微米厚。当用10 - 3溶液处理牙本质时，每种粘结剂的层厚约为1微米。
