Mesquita M F, Domitti S S, Consani S, de Goes M F
Departamento de Prótese e Periodontia, Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas (UNICAMP), SP, Brasil.
Braz Dent J. 1999;10(1):5-9.
This in vitro study evaluates the effect of storage time and acid etching on the tensile bond strength of glass ionomer cement to composite resins. The bonded assemblies were stored at 100% relative humidity and 37 degrees C for 1 hour, 1 day, 1 week, 1 month and 3 months. The test specimen was loaded at tension to failure on an Otto Wolpert-Werke testing instrument with a crosshead speed of 6 mm/min. The results showed a significant statistical difference for etched Vidrion F when compared to etched Ketac Bond at all storage periods. The unetched samples were statistically similar at 3 months, with the highest values for Vidrion F.
这项体外研究评估了储存时间和酸蚀对玻璃离子水门汀与复合树脂拉伸粘结强度的影响。粘结组件在相对湿度100%和37摄氏度的条件下储存1小时、1天、1周、1个月和3个月。在奥托·沃尔珀特-韦尔克测试仪器上以6毫米/分钟的十字头速度对测试样本施加拉伸直至破坏。结果显示，在所有储存期内，与酸蚀的Ketac Bond相比，酸蚀的Vidrion F存在显著的统计学差异。未酸蚀的样本在3个月时在统计学上相似，Vidrion F的值最高。
