Łagodzińska Paulina, Bociong Kinga, Dejak Beata
Zakład Protetyki Stomatologicznej Katedry Stomatologii Odtwórczej, Uniwersytet Medyczny w Łodzi, Łódź, Polska.
Uczelniane Laboratorium Badań Materiałowych, Uniwersytet Medyczny w Łodzi, Łódź, Polska.
Polim Med. 2014 Jan-Mar;44(1):13-20.
Resin cements establish a strong durable bond between zirconia ceramic and hard tissues of teeth. It is essential to use primers with proper chemical composition before cementation.
The aim of this study was to assess the influence of primer's chemical composition on the shear bond strength of zirconia ceramic to resin cements.
132 zirconia specimens were randomly assigned to four groups. There were four resin systems used. They included resin cement and respective primer, dedicated to zirconia: Clearfil Ceramic Primer/Panavia F2.0, Monobond Plus/Multilink Automix, AZ - Primer/ResiCem, Z - Prime Plus/Duo-Link. In each group the protocol of cementation was as follows: application of primer to the zirconia surface and application of the respective resin cement in cylindric mold (dimensions: 3.0 mm height and 3.0 mm diameter). Then, the shear bond strength was evaluated and the failure type was assessed in lupes (×2.5 magnification), also random specimens under SEM. The Wilcoxon test was used to analyze the data, the level of significance was α = 0.05. Finally, the known chemical composition of each primer was analysed in reference to probable chemical bonds, which may occure between primers and zirconia.
The mean shear bond strength between resin cements and zirconia was the highest for Z-Prime Plus/Duo-Link (8.24 ± 3,21 MPa) and lowest for Clearfil Ceramic Primer/Panavia F 2.0 (4.60 ± 2.21 MPa). The analysis revealed significant difference between all groups, except pair Clearfil Ceramic Primer/Panavia F 2.0 and AZ-Primer/ResiCem. The failure type in groups of Clearfil Ceramic Primer/Panavia F 2.0 and AZ-Primer/ResiCem was mainly adhesive, in groups Monobond Plus/ /Multilink Automix and Z-Prime Plus/Duo-Link mainly mixed. The chemical composition of primers affects different bond mechanisms between resin cements and zirconia.
The highest shear bond strength of resin cement to zirconia can be obtained for the primer composed of 10-Methacryloyloxydecyl dihydrogen phosphate (MDP) and carboxylic monomer - Biphenyl dimethacrylate (BPDM).
树脂水门汀在氧化锆陶瓷与牙齿硬组织之间建立起牢固持久的粘结。在粘结前使用具有适当化学成分的底漆至关重要。
本研究旨在评估底漆化学成分对氧化锆陶瓷与树脂水门汀之间剪切粘结强度的影响。
132个氧化锆标本随机分为四组。使用了四种树脂系统。它们包括用于氧化锆的树脂水门汀和相应底漆：Clearfil Ceramic Primer/Panavia F2.0、Monobond Plus/Multilink Automix、AZ - Primer/ResiCem、Z - Prime Plus/Duo-Link。每组的粘结方案如下：将底漆涂覆在氧化锆表面，并在圆柱形模具（尺寸：高度3.0毫米，直径3.0毫米）中涂覆相应的树脂水门汀。然后，评估剪切粘结强度，并在放大镜（×2.5放大倍数）下评估失效类型，同时对随机标本进行扫描电子显微镜观察。使用Wilcoxon检验分析数据，显著性水平为α = 0.05。最后，参考底漆与氧化锆之间可能形成的化学键，分析每种底漆的已知化学成分。
树脂水门汀与氧化锆之间的平均剪切粘结强度，Z - Prime Plus/Duo-Link最高（8.24 ± 3.21 MPa），Clearfil Ceramic Primer/Panavia F 2.0最低（4.60 ± 2.21 MPa）。分析显示，除了Clearfil Ceramic Primer/Panavia F 2.0和AZ - Primer/ResiCem这一对组外，所有组之间均存在显著差异。Clearfil Ceramic Primer/Panavia F 2.0组和AZ - Primer/ResiCem组的失效类型主要为粘结性，Monobond Plus/ /Multilink Automix组和Z - Prime Plus/Duo-Link组主要为混合性。底漆的化学成分影响树脂水门汀与氧化锆之间不同的粘结机制。
由10 - 甲基丙烯酰氧基癸基磷酸二氢酯（MDP）和羧酸单体 - 联苯二甲基丙烯酸酯（BPDM）组成的底漆可获得树脂水门汀与氧化锆之间最高的剪切粘结强度。
