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首页> 外文期刊>The Journal of Prosthetic Dentistry >Effect of surface treatment on the bond strength between yttria partially stabilized zirconia ceramics and resin cement
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Effect of surface treatment on the bond strength between yttria partially stabilized zirconia ceramics and resin cement

机译：表面处理对氧化钇部分稳定的氧化锆陶瓷与树脂水泥结​​合强度的影响

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Statement of problem No consensus has been reached on the best bonding protocol between a zirconia ceramic surface and the tooth structure. Purpose The purpose of this study was to evaluate the extrusion shear strength between yttria partially stabilized zirconia ceramics and resin cement (Panavia F) after different surface treatments. Material and methods The surface treatments evaluated (n=7) included the following: G1-control group (no surface treatment); G2-treated with MDP primer (Alloy Primer); G3-treated with 40% hydrofluoric acid (210 seconds); and G4-treated with 40% hydrofluoric acid (210 seconds) followed by MDP primer. The specimens were bonded to 2.5-mm-thick disks of bovine root dentin, and the extrusion shear tests were performed after they had been stored for 24 hours in distilled water at 37°C. The surface modifications were assessed on 2 specimens that were selected from each group by scanning electron microscopy. Data were analyzed with 1-way ANOVA and the Tukey-Kramer honestly significant difference test (α=.05). Results G4 (mean 2.84, standard deviation [SD] 0.43 MPa) presented significantly higher (P<.001) extrusion shear strength when compared with the other groups in the study (G1: mean, 1.57; SD 0.28 MPa; G2: mean 1.46, SD 0.28 MPa; G4: mean 1.16, SD 0.41 MPa). No significant differences were found among the other groups in the study. Conclusions Yttria partially stabilized zirconia ceramics can be treated with 40% hydrofluoric acid for 210 seconds to increase the bond strength with the resin cement.
机译：问题陈述关于氧化锆陶瓷表面和牙齿结构之间的最佳结合方案尚未达成共识。目的本研究的目的是评估经过不同表面处理后的氧化钇部分稳定的氧化锆陶瓷与树脂水泥（Panavia F）之间的挤压剪切强度。材料和方法评估的表面处理（n = 7）包括：G1对照组（无表面处理）;用MDP底漆（Alloy Primer）处理的G2; G3用40％氢氟酸处理（210秒）; G4先用40％氢氟酸处理（210秒），再用MDP底漆处理。将样品粘结到2.5毫米厚的牛牙根牙本质盘上，并在37°C的蒸馏水中保存24小时后进行挤出剪切测试。在通过扫描电子显微镜从每组中选择的两个样品上评估了表面改性。数据采用1向ANOVA和Tukey-Kramer诚实差异显着性检验（α= .05）进行分析。结果与研究中的其他组相比，G4（平均值2.84，标准偏差[SD] 0.43 MPa）表现出明显更高的拉伸剪切强度（P <.001）（G1：平均值1.57; SD 0.28 MPa; G2：平均值1.46 ，SD 0.28 MPa; G4：平均值1.16，SD 0.41 MPa）。在研究的其他组之间没有发现显着差异。结论可以用40％的氢氟酸处理氧化钇部分稳定的氧化锆陶瓷210秒，以提高与树脂水泥的粘结强度。

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