›› 2013, Vol. 33 ›› Issue (4): 236-238.

• 基础与临床研究 • 上一篇    下一篇

热酸溶液蚀刻对牙科氧化锆陶瓷初期粘结强度的影响

印厚才1,谢海峰2,戴文雍3,章非敏3   

  1. 1. 南京医科大学口腔研究院
    2. 南京医科大学
    3. 南京医科大学口腔医学院
  • 收稿日期:2012-08-28 修回日期:2012-09-13 出版日期:2013-04-28 发布日期:2013-04-18
  • 通讯作者: 谢海峰 E-mail:xhf-1980@126.com
  • 基金资助:
    江苏高校优势学科建设工程资助项目;江苏省高校高新技术产业化推广项目

Effect of hot chemical etching on short-term bond strength of zirconia to resin

1, Wen-Yong DAI1,   

  • Received:2012-08-28 Revised:2012-09-13 Online:2013-04-28 Published:2013-04-18

摘要: [摘要] 目的 研究用3种酸溶液加热处理对氧化锆全瓷表面粘结性能的影响。方法 制作40枚氧化锆陶瓷片,喷砂后分为5组制作陶瓷/树脂粘结试件。其中,A组陶瓷表面,H2SO4与(NH4)2SO4混合液加热条件下蚀刻,使用含磷酸功能单体的涂底剂Clearfil;B组,HF与HNO3混合液加热条件下蚀刻,使用Clearfil涂底剂;C组,H2SO4、HF、HNO3混合液加热条件下蚀刻,使用Clearfil涂底剂;D组,仅使用Clearfil涂底剂;E组,不处理。测试试件的剪切粘结强度,并进行统计学分析。喷砂及喷砂结合各酸混合液热处理后的氧化锆陶瓷表面以扫描电镜观察。结果 E组的剪切粘结强度值最低(3.03±0.94) MPa;D组其次(7.53±1.37) MPa,A、B、C组数值较高,分别为(9.16±1.12) MPa,(8.89±1.06) MPa,(8.95±1.36) MPa,且3组间无统计学差异。扫描电镜结果示喷砂结合酸蚀处理的氧化锆表面与单纯喷砂的表面有明显区别,3种酸混合液处理后的表面形态之间也有明显不同。结论 热酸溶液蚀刻结合包含磷酸功能单体的涂底剂能够显著提高陶瓷/树脂的粘结强度。

关键词: 氧化锆, 表面处理, 酸蚀, 粘结, dental zirconia ceramic, surface treatment, acid etching, bonding

Abstract: Abstract: Objective To evaluate the influence of three kinds of hot acid solution on short-term shear bond strength of zirconia to resin. Methods 40 zirconia ceramic slices were obtained. After sandblasting, they were divided into 5 groups based on the surface treatment to be applied: group A: H2SO4 / (NH4)2SO4 hot mixed solution etching + application of 10-MDP contained primer Clearfil; group B: HF / HNO3 hot mixed solution etching + application of Clearfil; group C: H2SO4 / HF / HNO3 hot mixed solution etching + application of Clearfil; group D: application of Clearfil; E: no further treatment. Shear bond strength of the specimens was tested and statistically analyzed. The morphology of zirconia surfaces treated by sandblasting with or without hot mixed solution etching was observed with a scanning electron microscope (SEM). Results The shear bond strength of group E was the lowest (3.03±0.94) MPa. The shear bond strength of group B was the second lowest(7.53±1.37) Mpa. The shear bond strength of group A, B, and C was higher than that of the other two groups, which was respectively (9.16±1.12) MPa,(8.89±1.06) MPa,(8.95±1.36) MPa (P<0.05), while no statistical difference was found between the three acid etched groups. SEM images showed obvious morphological difference between groups treated by sandblasting with hot mixed solution etching and groups treated only by sandblasting. Morphology of surfaces treated with three kinds of mixed etching solution was also obviously different. Conclusion Hot acid solution etching combined with application of 10-MDP contained primer provided better bonding for zirconia.

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