Elkins C J, McCourt J W
Pediatric Dentistry, University of Texas, Health Science Center at San Antonio, Texas 78284-7888.
Quintessence Int. 1993 Apr;24(4):271-3.
The purpose of this project was to test the in vitro bond strength of three dentinal bonding agents to primary dentin. Scotchbond 2, All-Bond, and Amalgambond were applied to 63 teeth according to manufacturer's instructions. Valux composite resin was placed in a cylindrical matrix and light cured to the treated dentin. After they were thermocycled for approximately 800 cycles between 6 degrees C and 60 degrees C, the specimens were mounted in stone and placed in an Instron universal testing machine. They were placed under continuous load until failure. Fracture was at the dentin-bonding agent interface for all materials tested. Incisor bond strength was significantly stronger than molar bond strength for all three materials. Materials analysis revealed that the mean bond strength for Scotchbond 2 (6.99 MPa) was significantly different from those of All-Bond (13.01 MPa) and Amalgambond (13.03 MPa).
本项目的目的是测试三种牙本质粘结剂与乳牙本质的体外粘结强度。按照制造商的说明，将Scotchbond 2、全粘结剂和银汞粘结剂应用于63颗牙齿。将Valux复合树脂置于圆柱形模具中，并对处理过的牙本质进行光固化。在6℃至60℃之间进行约800次热循环后，将标本安装在石膏中，并置于英斯特朗万能试验机上。对其施加持续载荷直至破坏。所有测试材料的断裂均发生在牙本质-粘结剂界面。对于所有三种材料，切牙的粘结强度明显强于磨牙的粘结强度。材料分析表明，Scotchbond 2的平均粘结强度（6.99MPa）与全粘结剂（13.01MPa）和银汞粘结剂（13.03MPa）的平均粘结强度有显著差异。
