Passia Nicole, Mitsias Miltiadis, Lehmann Frank, Kern Matthias
Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Arnold-Heller-Street 16, 24105 Kiel, Germany.
Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Arnold-Heller-Street 16, 24105 Kiel, Germany.
J Mech Behav Biomed Mater. 2016 Sep;62:268-274. doi: 10.1016/j.jmbbm.2016.04.045. Epub 2016 May 13.
The purpose of this laboratory study was to evaluate the tensile bond strength of a new generation of universal bonding systems to zirconia ceramic and to compare the results with the bond strength of a clinically-established bonding system. Eighty zirconia ceramic test specimens (e.max ZirCAD) were air-abraded and bonded to Plexiglas tubes, filled with an aliphatic dimethacrylate filling material (Clearfil F II), using three so called universal bonding systems of a new generation with different compositions (Monobond Plus/MultilinkAutomix, NX3, Scotchbond Universal/RelyX Ultimate). The latter was used also without the phosphate monomer containing primer Scotchbond Universal. A clinically established phosphate monomer containing adhesive cement served as control group (Panavia F2.0). The specimens were stored in water at 37°C for 3 or 150 days and the long-term storage series were additionally thermal cycled between 5 and 55°C for 37,500 times to simulate oral conditions. All specimens underwent tensile bond strength testing. The statistical analysis was performed using Kruskal-Wallis and Wilcoxon-Test with a Bonferroni-Holm correction for multiple testing. After 150 days the median bond strength of RelyX Ultimate, with and without Scotchbond Universal, and Panavia F2.0 did not differ statistically (range: 21.7-28.8MPa), while the bond strength of Monobond Plus/Multilink Automix was significantly lower (15.4MPa), and that of NX3 the lowest (6.6MPa). After 150 days of water storage with thermal cycling, all adhesive system showed significantly reduced tensile bond strengths compared to that after 3 days. Only RelyX Ultimate was comparable to the established bonding system Panavia F2.0. The additional use of Scotchbond Universal did not result in a significant effect.
本实验室研究的目的是评估新一代通用粘结系统与氧化锆陶瓷的拉伸粘结强度，并将结果与临床常用粘结系统的粘结强度进行比较。80个氧化锆陶瓷测试样本（e.max ZirCAD）经过空气喷砂处理后，使用三种不同成分的新一代通用粘结系统（Monobond Plus/MultilinkAutomix、NX3、Scotchbond Universal/RelyX Ultimate）粘结到装有脂肪族二甲基丙烯酸酯填充材料（Clearfil F II）的有机玻璃管上。后者在不使用含磷酸盐单体底漆Scotchbond Universal的情况下也可使用。一种临床常用的含磷酸盐单体粘结剂作为对照组（Panavia F2.0）。样本在37°C的水中储存3天或150天，长期储存组还在5至55°C之间进行37500次热循环，以模拟口腔环境。所有样本均进行拉伸粘结强度测试。采用Kruskal-Wallis检验和Wilcoxon检验进行统计分析，并采用Bonferroni-Holm校正进行多重检验。150天后，使用和不使用Scotchbond Universal的RelyX Ultimate以及Panavia F2.0的中位粘结强度在统计学上无差异（范围：21.7 - 28.8MPa），而Monobond Plus/Multilink Automix的粘结强度显著较低（15.4MPa），NX3的粘结强度最低（6.6MPa）。在经过150天储水和热循环后，与3天后相比，所有粘结系统的拉伸粘结强度均显著降低。只有RelyX Ultimate与常用粘结系统Panavia F2.0相当。额外使用Scotchbond Universal未产生显著影响。
