Effect of surface conditioning methods on the bond strength of luting cement to ceramics
Effect of surface conditioning methods on the bond strength of luting cement to ceramics
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DOI：
10.1016/s0109-5641(03)00019-8
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发表时间：
2003-12-01
期刊：
影响因子：
5
通讯作者：
Vallittu, PK
中科院分区：
文献类型：
--
作者：
Özcan, M;Vallittu, PK
目标.本研究评价了三种不同的表面处理方法对Bis-GMA基粘结水泥与六种商业牙科陶瓷的粘结强度的影响。每个试验组使用6个圆盘形陶瓷样本（玻璃陶瓷、玻璃渗透氧化铝、玻璃渗透二氧化锆增强氧化铝），共产生216个样本。每组中的试样被随机分配到以下处理条件之一：（1）氢氟酸蚀刻，（2）空气颗粒磨损，（3）摩擦化学二氧化硅涂层。使用聚乙烯模具将树脂复合物胶合水泥粘合到经调理和硅烷化的陶瓷上。在干燥和热循环（6.000，5- 55 ℃，30 s）条件下测试所有样本。在万能试验机上（2 mm/min）测定粘接剂与陶瓷的剪切粘接强度。在干燥条件下，酸蚀玻璃陶瓷表现出显著高于玻璃渗透氧化铝陶瓷（5.3-18.1 MPa）或二氧化锆（8.1 MPa）的结果（ANOVA，P < 0.001）（26.4-29.4 MPa）。与空气颗粒磨损相比，硅烷化的二氧化硅涂层显著增加了高氧化铝陶瓷（8.5-21.8 MPa）和玻璃渗透二氧化锆陶瓷（17.4 MPa）的结合强度（ANOVA，P < 0.001）。在所有测试的调节方法之后，热循环显著降低了粘结强度。经过表面处理方法后，在牙科陶瓷上测试的胶合剂的粘结强度根据陶瓷类型而变化。氢氰酸凝胶主要对结构中含有玻璃基质的陶瓷起作用。粗糙的陶瓷表面与空气颗粒磨损提供了更高的粘结强度高氧化铝陶瓷和二氧化硅涂层/硅烷化后的值增加更显着。2003年牙科材料学院。由爱思唯尔有限公司出版。保留所有权利。
Objectives. This study evaluated the effect of three different surface conditioning methods on the bond strength of a Bis-GMA based luting cement to six commercial dental ceramics.Methods. Six disc shaped ceramic specimens (glass ceramics, glass infiltrated alumina, glass infiltrated zirconium dioxide reinforced alumina) were used for each test group yielding a total number of 216 specimens. The specimens in each group were randomly assigned to one of the each following treatment conditions: (1) hydrofluoric acid etching, (2) airborne particle abrasion, (3) tribochemical silica coating. The resin composite luting cement was bonded to the conditioned and silanized ceramics using polyethylene molds. All specimens were tested at dry and thermocycled (6.000, 5-55degreesC, 30 s) conditions. The shear bond strength of luting cement to ceramics was measured in a universal testing machine (2 mm/min).Results. In dry conditions, acid etched glass ceramics exhibited significantly higher results (26.4-29.4 MPa) than those of glass infiltrated alumina ceramics (5.3-18.1 MPa) or zirconium dioxide (8.1 MPa) (ANOVA, P < 0.001). Silica coating with silanization increased the bond strength significantly for high-alumina ceramics (8.5-21.8 MPa) and glass infiltrated zirconium dioxide ceramic (17.4 MPa) compared to that of airborne particle abrasion (ANOVA, P < 0.001). Thermocycling decreased the bond strengths significantly after all of the conditioning methods tested.Significance. Bond strengths of the luting cement tested on the dental ceramics following surface conditioning methods varied in accordance with the ceramic types. Hydrofluoric acid gel was effective mostly on the ceramics having glassy matrix in their structures. Roughening the ceramic surfaces with air particle abrasion provided higher bond strengths for high-alumina ceramics and the values increased more significantly after silica coating/silanization. 2003 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.