El-Damanhoury Hatem M, Gaintantzopoulou Maria D
Department of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates; Department of Operative Dentistry, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt.
Department of Biomaterials, School of Dentistry, National and Kapodistrian University of Athens, Greece.
J Prosthodont Res. 2018 Jan;62(1):75-83. doi: 10.1016/j.jpor.2017.06.002. Epub 2017 Jun 23.
This study assessed the effect of pretreatment of hybrid and glass ceramics using a self-etching primer on the shear bond strength (SBS) and surface topography, in comparison to pretreatment with hydrofluoric acid and silane.
40 rectangular discs from each ceramic material (IPS e.max CAD;EM, Vita Mark II;VM, Vita Enamic;VE), were equally divided (n=10) and assigned to one of four surface pretreatment methods; etching with 4.8% hydrofluoric acid followed by Monobond plus (HFMP), Monobond etch & prime (Ivoclar Vivadent) (MEP), No treatment (NT) as negative control and Monobond plus (Ivoclar Vivadent) with no etching (MP) as positive control. SBS of resin cement (Multilink-N, Ivoclar Vivadent) to ceramic surfaces was tested following a standard protocol. Surface roughness was evaluated using an Atomic force microscope (AFM). Surface topography and elemental analysis were analyzed using SEM/EDX. Data were analyzed with two-way analysis of variance (ANOVA) and post-hoc Bonferroni test at a significance level of α=0.05.
Pretreatment with HFMP resulted in higher SBS and increased surface roughness in comparison to MEP and MP. Regardless the method of surface pretreatment, the mean SBS values of EM ceramic was significantly higher (p<0.05) than those recorded for VM and VE, except when VE was treated with MEP, where the difference was statistically insignificant. Traces of fluoride ion were detected when MEP was used with VE and VM.
Under limited conditions, using MEP resulted in comparable SBS results to HFMP; meanwhile HFMP remains the gold standard for pretreatment of glass ceramics for resin-luting cementation.
本研究评估了与氢氟酸和硅烷预处理相比，使用自酸蚀底漆对混合陶瓷和玻璃陶瓷进行预处理对剪切粘结强度（SBS）和表面形貌的影响。
从每种陶瓷材料（义获嘉e.max CAD；EM、维他马克II；VM、维他牙本质瓷；VE）中选取40个矩形圆盘，平均分为四组（n = 10），并分配到四种表面预处理方法之一；用4.8%氢氟酸蚀刻后再用单组分粘结剂（HFMP）、单组分酸蚀粘结剂（义获嘉威瓦登特）（MEP）、不进行处理（NT）作为阴性对照，以及不蚀刻只用单组分粘结剂（义获嘉威瓦登特）（MP）作为阳性对照。按照标准方案测试树脂水门汀（Multilink-N，义获嘉威瓦登特）与陶瓷表面的SBS。使用原子力显微镜（AFM）评估表面粗糙度。使用扫描电子显微镜/能谱仪（SEM/EDX）分析表面形貌和元素分析。数据采用双因素方差分析（ANOVA）和事后Bonferroni检验进行分析，显著性水平为α = 0.05。
与MEP和MP相比，HFMP预处理导致更高的SBS和表面粗糙度增加。无论表面预处理方法如何，EM陶瓷的平均SBS值均显著高于VM和VE记录的值（p < 0.05），但当VE用MEP处理时，差异无统计学意义。当MEP与VE和VM一起使用时，检测到氟离子痕迹。
在有限条件下，使用MEP导致的SBS结果与HFMP相当；同时，HFMP仍然是用于树脂粘结水门汀粘结的玻璃陶瓷预处理的金标准。
