Influence of different surface treatment on the shear bond strength of zirconia-veneering ceramic systems
10.3969/j.issn.1001-3733.2017.06.002
- VernacularTitle:不同表面处理方法对氧化锆与饰瓷剪切强度的影响
- Author:
Xiaxue ZHANG
1
;
Zhiyu CHEN
;
Lingqiang MENG
;
Jianping JIAO
;
Gang LI
;
Changjun GUO
Author Information
1. 050017石家庄,河北医科大学口腔医学院,河北省口腔医学重点实验室
- Keywords:
Zirconia;
Sandblasting;
Hot etching;
Shear bond strength
- From:
Journal of Practical Stomatology
2017;33(6):723-726
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To assess the influence of different surface treatment on the adhesion of the zirconia-veneering ceramic systems.Methods:28 zirconia specimens were divided into 4 groups(n =7) and treated by non-treatment(group A,the control),sandblaste(group B),hot-etching(group C) and sandblaste + hot-etching(group D).2 specimens randomly selected from each group were examined under SEM and XRD for the observation of surface structure.The veneering porcelain was layered on the remaining specimens of the 4 groups (n =5),then the shear strength of the interface was tested by a universal testing machine.Data were statistically analyzed by SPSS 13.0 software.Results:Different degrees of micro pore structure was observed on the zircomia surface of the 4 groups by SEM observation.The XRD analysis showed that all specimens emerged monoclinic phase.The shear bond strength of group A,B,C and D was (15.96 ± 3.44) MPa,(20.58 ± 2.21) MPa,(26.28 4-2.86) MPa and (22.51 ± 1.94) MPa respectively.group A vs group B,C and D,P ＜ 0.05;group C vs group A,B and D,P ＜ 0.05.Conclusion:The surface treatment of sandblaste,hot-etching and sandblasted + hot-etching can improve the shear bond strength of the zirconia-veneering ceramic systems,and the hotetching method is the most effective.
