临床口腔医学杂志2017，Vol.33Issue(12)：711-714,4.DOI:10.3969/j.issn.1003-1634.2017.12.006
不同化学溶剂的桩表面处理对玻璃纤维桩与树脂水门汀粘接强度的影响
The effects of surface treatments by different chemical solvents on the bond strength of glass fiber post with res-in cement
摘要
Abstract
Objective:To evaluate the effects of surface treatments by different chemical solvents on the bond strength of glass fiber post with resin cement. Methods:Twenty-four glass fiber posts were randomly divided into 4 groups in-cluding group A(control group),group B(silanization),group C(10% H2O2)and group D(35% phosphoric acid). The glass fiber posts and resin cement were adhered to form resin blocks,which were cut into thin slices of specimens. The speci-mens were placed in the universal testing machine to calculate the bonding strength through push-out test,failure mode was observed under stereomicroscope and surface conditions of the treated fiber posts were observed by scanning electron micros-copy. Results:The bond strengths of the groups satisfied the relation of 10% H2 O2 group >35% phosphoric acid group >silanization group > control group. There was no significant difference in bond strength existed between the silanization group and the control group(P>0. 05),and comparison between each other two remaining groups showed significant difference,re-spectively(P<0. 05). Scanning electron microscopic observation showed that the glass fiber posts subjected to surface treat-ments presented resin matrix dissolution in different degrees,and some had fiber exposure. Conclusion:Surface treatments of fiber posts by the three kinds of chemical solvents can improve the bonding strength of the fiber posts with resin cement, wherein 10% H2 O2 treatment results in the highest bond strength.关键词
玻璃纤维桩/树脂水门汀/粘接强度/表面处理Key words
Glass fiber post/Resin cement/Bonding strength/Surface treatment分类
医药卫生引用本文复制引用
盛敏,石宁..不同化学溶剂的桩表面处理对玻璃纤维桩与树脂水门汀粘接强度的影响[J].临床口腔医学杂志,2017,33(12):711-714,4.
