Department of Biomaterials, Faculty of Dental Surgery, University of Paris Descartes, 1 Rue Maurice Arnoux, F-92120 Montrouge, France.
J Biomater Sci Polym Ed. 2010;21(5):593-608. doi: 10.1163/156856209X431640.
The purpose of this study was to assess the bond strengths of three self-adhesive resin cements (Rely X Unicem, Maxcem and Multilink Sprint) fixing dentine to four different restorative substrates (Ni-Cr alloy, E-Max glass-ceramic, Y-TZP Zirconia and Adoro micro-filled composite) and to compare their performances with those of two conventional dual-cured luting cements (Variolink II + Total-etch Excite DSC and Multilink Automix + Self-etching Primer A + B). Cylindric specimens (5 x 5 mm) were prepared with the four restorative materials for bonding to human dentine. Three surface treatments were performed depending on the restorative material: (i) Al2O3 50 microm sandblasting (Ni-Cr, Adoro), (ii) #800 SiC polishing (Zirconia, E-Max), (iii) hydrofluoric acid (HF)-etching (E-Max). Twenty-five groups (n = 10) were designed according to luting cements, restorative materials and surface pre-treatments. In some experimental groups, Variolink II and Multilink Automix were coupled with, respectively, a silane primer (Monobond S) and an alloy/zirconia primer (Multilink A/Z primer). Specimens were stored in distilled water at 37 degrees C for 24 h and then loaded in shear until failure. Variolink II and Multilink Automix showed the highest bond strengths, regardless of the restorative substrate, when used with dentine bonding systems and primers, while the weakest bonds were with Maxcem. The bond strength recorded with the two other self-adhesive cements depended on the nature of the restorative substrate. Increasing retention at the interfaces (i.e., HF ceramic etching) and using specific primers significantly improves the bond strength of luted restorative materials to dentine.
本研究的目的是评估三种自粘接树脂水门汀（Rely X Unicem、Maxcem 和 Multilink Sprint）将牙本质固定到四种不同修复基底（Ni-Cr 合金、E-Max 玻璃陶瓷、Y-TZP 氧化锆和 Adoro 微填充复合材料）的粘结强度，并将其与两种传统双固化水门汀（Variolink II + Total-etch Excite DSC 和 Multilink Automix + Self-etching Primer A + B）的性能进行比较。用人牙本质制备了四种修复材料的圆柱形试件（5x5mm）。根据修复材料进行了三种表面处理：（i）Al2O3 50μm 喷砂（Ni-Cr、Adoro），（ii）#800SiC 抛光（氧化锆、E-Max），（iii）氢氟酸（HF）蚀刻（E-Max）。根据水门汀、修复材料和表面预处理，设计了 25 组（n=10）。在一些实验组中，Variolink II 和 Multilink Automix 分别与硅烷底漆（Monobond S）和合金/氧化锆底漆（Multilink A/Z 底漆）偶联。将试件在 37°C 蒸馏水中储存 24 小时，然后进行剪切加载直至失效。无论修复基底如何，使用牙本质粘结系统和底漆时，Variolink II 和 Multilink Automix 显示出最高的粘结强度，而 Maxcem 的粘结强度最弱。两种其他自粘接水门汀的粘结强度取决于修复基底的性质。增加界面的保持力（即 HF 陶瓷蚀刻）和使用特定的底漆可显著提高粘结剂修复材料与牙本质的粘结强度。
