Microshear Bond Strength of Resin Cements to Lithium Disilicate Substrates as a Function of Surface Preparation
Microshear Bond Strength of Resin Cements to Lithium Disilicate Substrates as a Function of Surface Preparation
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DOI：
10.2341/14-240-l
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发表时间：
2015-09-01
影响因子：
2.2
通讯作者：
Lopes, G. C.
中科院分区：
文献类型：
--
作者：
Lise, D. P.;Perdigao, J.;Lopes, G. C.
目的：探讨氢氟酸（HF）蚀刻，硅烷溶液，和粘合剂系统的应用程序上的微剪切粘结强度（亩SBS）的二硅酸锂玻璃陶瓷（LD）到三个树脂cements.Materials和方法：圆形结合区划定使用穿孔胶带的二硅酸锂表面上。根据表面处理将样本分配到18个亚组（n=12）：NT =未处理; HF = 4.8%HF，20秒;硅烷溶液：（1）无硅烷;（2）Monobond Plus，硅烷/10-甲基丙烯酰氧基癸基磷酸二氢酯溶液，60秒;（3）Monobond Plus+ExciTE F DSC，双固化粘合剂;和树脂粘固剂：（1）Variolink II，一种基于双酚A二缩水甘油醚二甲基丙烯酸酯（bis-GMA）的手动混合双固化树脂粘固剂;（2）Multilink Automix，一种基于bis-GMA的自动混合双固化树脂粘固剂;（3）RelyX Unicem 2，一种自粘性自动混合双固化树脂粘固剂。聚乙烯管（空组=0.8 mm）用作树脂粘固剂应用的圆柱体基质。在水储存24小时后，将样品提交至mu SBS测试。在光学显微镜下对失效模式进行了评价，并将其分类为粘合剂、混合物、树脂水泥中的内聚物或陶瓷中的内聚物。数据采用三因素方差分析和Dunnett检验进行统计学处理（p
Objectives: To investigate the effect of hydrofluoric acid (HF) etching, silane solution, and adhesive system application on the microshear bond strength (mu SBS) of lithium disilicate glass-ceramic (LD) to three resin cements.Materials and Methods: Circular bonding areas were delimited on the lithium disilicate surfaces using a perforated adhesive tape. Specimens were assigned to 18 subgroups (n=12) according to surface treatment: NT = no treatment; HF = 4.8% HF for 20 seconds; silane solution: (1) no silane; (2) Monobond Plus, a silane/10-methacryloyloxydecyl dihydrogen phosphate solution for 60 seconds; (3) Monobond Plus+ExciTE F DSC, a dual-cure adhesive; and resin cement: (1) Variolink II, a bisphenol A diglycidyl ether dimethacrylate (bis-GMA)-based, hand-mixed, dual-cure resin cement; (2) Multilink Automix, a bis-GMA-based, auto-mixed, dual-cure resin cement; (3) RelyX Unicem 2, a self-adhesive, auto-mixed, dual-cure resin cement. Tygon tubes (empty set=0.8 mm) were used as cylinder matrices for resin cement application. After 24 hours of water storage, the specimens were submitted to the mu SBS test. Mode of failure was evaluated under an optical microscope and classified as adhesive, mixed, cohesive in resin cement, or cohesive in ceramic. Data were statistically analyzed with three-way analysis of variance and Dunnett test (p