Probing the mineralized tissue-adhesive interface for tensile nature and bond strength.
Probing the mineralized tissue-adhesive interface for tensile nature and bond strength.
复制标题
DOI：
10.1016/j.jmbbm.2021.104563
复制
发表时间：
2021-08
影响因子：
3.9
通讯作者：
Misra A
中科院分区：
文献类型：
--
作者：
Sarikaya R;Ye Q;Song L;Tamerler C;Spencer P;Misra A
牙本质-粘结剂界面的力学性能是导致牙科复合修复体失效的重要原因。合理的材料设计可以提高机械性能，但这需要牙本质-粘接剂界面力学行为的准确表征。界面的机械性能通常使用粘结强度测试来表征，例如微拉伸测试。这些测试受到多重限制的困扰，包括测试结果的巨大差异。与传统拉伸测试相关的挑战限制了我们解开影响牙本质-粘附剂界面机械行为的复杂关系的能力。这项研究使用径向压缩测试来克服传统粘结强度测试中固有的挑战。牛股骨皮质骨组织被认为是人牙本质的替代材料(矿化组织)。研究了两种不同的胶粘剂配方，它们的自增强性能有所不同。通过径向压缩试验确定矿化组织、粘接聚合物的拉伸行为以及矿化组织-粘接界面的粘结强度。径向压缩试验提高了拉伸和粘结强度试验的重复性。在单一材料体系和界面材料体系中都观察到了速率相关的力学行为。与对照组相比，自增强配方的矿化组织-粘结剂界面的拉伸强度和粘结强度更大。
The mechanical performance of the dentin-adhesive interface contributes significantly to the failure of dental composite restorations. Rational material design can lead to enhanced mechanical performance, but this requires accurate characterization of the mechanical behavior at the dentin-adhesive interface. The mechanical performance of the interface is typically characterized using bond strength tests, such as the micro-tensile test. These tests are plagued by multiple limitations including large variations in the test results. The challenges associated with conventional tensile tests limit our ability to unravel the complex relationships that affect mechanical behavior at the dentin-adhesive interface. This study used the diametral compression test to overcome the challenges inherent in conventional bond strength tests. The bovine femur cortical bone tissue was considered as a surrogate material (the mineralized tissue) for human dentin. Two different adhesive formulations, which differed by means of their self-strengthening properties, were studied. The tensile behavior of the mineralized tissue, the adhesive polymer, and the bond strength of the mineralized tissue – adhesive interface was determined using the diametral compression test. The diametral compression test improved the repeatability for both the tensile and bond strength tests. The rate dependent mechanical behavior was observed for both single material and interfacial material systems. The tensile strength and bond strength of the mineralized tissue-adhesive interface was greater for the self-strengthening formulation as compared to the control.
登录
查看更多内容
影响因子：
0.8
作者：
Abdullah, Rini Asnida;Tsutsumi, Takashi
通讯作者：
Tsutsumi, Takashi
影响因子：
4.4
作者：
Carrera, Carola A.;Chen, Yung-Chung;Fok, Alex
通讯作者：
Fok, Alex
基于圆环劈裂试验的岩石静动拉伸破坏特性
DOI：
10.1016/s1003-6326(16)64307-8
发表时间：
2016-07-01
影响因子：
4.5
作者：
Li, Di-yuan;Wang, Tao;Sun, Xiao-lei
通讯作者：
Sun, Xiao-lei
影响因子：
5
作者：
Armstrong, SR;Boyer, DB;Keller, JC
通讯作者：
Keller, JC
岩石力学应用的巴西圆盘测试：回顾和新见解
影响因子：
6.2
作者：
Li, Diyuan;Wong, Louis Ngai Yuen
通讯作者：
Wong, Louis Ngai Yuen