表面处理对氧化锆与人牙本质间剪切粘结强度的影响。

Effect of surface treatment on shear bond strength of zirconia to human dentin.

机构信息

Northwestern University, Evanston, IL, USA.

出版信息

J Prosthodont. 2011 Apr;20(3):173-9. doi: 10.1111/j.1532-849X.2011.00695.x. Epub 2011 Apr 4.

DOI:10.1111/j.1532-849X.2011.00695.x

PMID:21463380

Abstract

PURPOSE

The effect of surface treatment using tribochemical silica coating/silane coupling on the shear bond strengths of (1) a glass-infiltrated, zirconia-reinforced alumina (In-Ceram Zirconia) and (2) a yttria-stabilized zirconia ceramic (YZ Zirconia) to human dentin was studied.

MATERIALS AND METHODS

Twelve specimens of each ceramic were randomly assigned to one of three surface treatments: (1) no surface treatment (control group); (2) a chairside tribochemical silica coating/silane coupling system (CoJet group); and (3) a laboratory tribochemical silica coating/silane coupling system (Rocatac group). The mode of failure of each specimen was determined under magnification.

RESULTS

The shear bond strengths (mean ± SD) of In-Ceram Zirconia of the control, CoJet and Rocatec groups were 5.7 ± 4.3 MPa, 11.4 ± 5.4 MPa, and 6.5 ± 4.8 MPa, respectively. The corresponding figures for YZ Zirconia were 8.2 ± 5.4 MPa, 9.8 ± 5.4 MPa, and 7.8 ± 4.7 MPa. Two-way ANOVA revealed significant differences in bond strength due to the difference in surface treatment (p= 0.02), but the bond strengths between the two ceramics were not significantly different (p= 0.56). Post hoc tests showed that In-Ceram Zirconia treated with CoJet had significantly higher shear bond strengths than those untreated (p < 0.05) or treated with Rocatec (p < 0.05). Surface treatment did not affect the shear bond strength of YZ Zirconia significantly (p > 0.05).

CONCLUSION

The bonding of In-Ceram Zirconia can be improved by the chairside surface treatment system.

摘要

目的

研究使用化学机械硅涂层/硅烷偶联处理对（1）玻璃渗透氧化锆增强氧化铝（In-Ceram Zirconia）和（2）氧化钇稳定氧化锆陶瓷（YZ Zirconia）与牙本质的剪切结合强度的影响。

材料与方法

将每种陶瓷的 12 个样本随机分为三种表面处理方式之一：（1）无表面处理（对照组）；（2）椅旁化学机械硅涂层/硅烷偶联系统（CoJet 组）；和（3）实验室化学机械硅涂层/硅烷偶联系统（Rocatac 组）。在放大倍数下确定每个样本的失效模式。

结果

对照组、CoJet 组和 Rocatac 组 In-Ceram Zirconia 的剪切结合强度（平均值±标准差）分别为 5.7±4.3 MPa、11.4±5.4 MPa 和 6.5±4.8 MPa。YZ Zirconia 的相应数据分别为 8.2±5.4 MPa、9.8±5.4 MPa 和 7.8±4.7 MPa。双因素方差分析显示，表面处理方式的差异导致结合强度有显著差异（p=0.02），但两种陶瓷的结合强度无显著差异（p=0.56）。事后检验显示，用 CoJet 处理的 In-Ceram Zirconia 的剪切结合强度明显高于未经处理（p<0.05）或用 Rocatac 处理的（p<0.05）。表面处理对 YZ Zirconia 的剪切结合强度无显著影响（p>0.05）。