Moura Sandra Kiss, Santos José Fortunato Ferreira, Ballester Rafael Yagüe
Department of Dental Materials, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil.
Braz Dent J. 2006;17(3):179-85. doi: 10.1590/s0103-64402006000300001.
The purpose of this study was to assess the morphological characteristics of the tooth/adhesive interface using different adhesive systems in MOD restorations under scanning electron microscopy (SEM). The tested hypothesis was that the morphology of the bonding interface would vary in different areas of MOD restorations for the three adhesive systems. MOD cavities were prepared in 12 sound extracted human third molars and restored with Filtek Z250 composite resin and one of the following adhesive systems: Experimental ABF (n=4), Clearfil SE Bond (n=4) self-etching primers and Single Bond etch-and-rinse adhesive system (n=4). After 24-h storage in distilled water at 37 degrees C, teeth were sectioned and prepared for SEM. The interfacial morphology varied depending on the adhesive system and also on the evaluated area. The null hypothesis was accepted because the morphology of the tooth/adhesive interface reflected the characteristics of both the dental substrate and the adhesive systems.
本研究的目的是在扫描电子显微镜（SEM）下评估在MOD修复体中使用不同粘结系统时牙齿/粘结剂界面的形态特征。所测试的假设是，对于这三种粘结系统，MOD修复体不同区域的粘结界面形态会有所不同。在12颗完好拔除的人类第三磨牙上制备MOD洞型，并用Filtek Z250复合树脂和以下粘结系统之一进行修复：实验性ABF（n = 4）、Clearfil SE Bond（n = 4）自酸蚀底漆和Single Bond酸蚀冲洗粘结系统（n = 4）。在37℃蒸馏水中储存24小时后，将牙齿切片并制备用于SEM观察。界面形态因粘结系统以及评估区域的不同而有所变化。原假设被接受，因为牙齿/粘结剂界面的形态反映了牙体组织和粘结系统的特征。
