Lino Carracho A J, Chappell R P, Glaros A G, Purk J H, Eick J D
Department of Fixed Prosthodontics and Occlusion, Classic University of Lisbon, School of Dental Medicine.
Quintessence Int. 1991 Sep;22(9):745-52.
The purpose of this investigation was to evaluate the effects of time of storage and thermocycling on the shear bond strength of three dentinal adhesives. The shear bond strength of Mirage Bond was significantly greater than that of Scotchbond 2, which was significantly greater than that of Scotchbond Dual Cure (P less than or equal to .05). Thermocycling significantly lowered the shear bond strength of Scotchbond Dual Cure and Scotchbond 2, but not that of Mirage Bond (P less than or equal to .05). Time of storage did not affect the shear bond strength of the other adhesives, but Mirage Bond had a significantly greater shear bond strength after 1 month of storage (P less than or equal to .05). Scanning electron microscopic observations showed that the fracture patterns were all at the smear layer-adhesive interface for Scotchbond Dual Cure, the majority of the fractures were at the primer-adhesive interface for Scotchbond 2, and most of the fractures were cohesive in the bonding agent for Mirage Bond.
本研究的目的是评估储存时间和热循环对三种牙本质粘结剂剪切粘结强度的影响。Mirage Bond的剪切粘结强度显著高于Scotchbond 2，而Scotchbond 2又显著高于Scotchbond Dual Cure（P≤0.05）。热循环显著降低了Scotchbond Dual Cure和Scotchbond 2的剪切粘结强度，但未降低Mirage Bond的（P≤0.05）。储存时间未影响其他粘结剂的剪切粘结强度，但Mirage Bond在储存1个月后的剪切粘结强度显著更高（P≤0.05）。扫描电子显微镜观察显示，Scotchbond Dual Cure的断裂模式均位于玷污层-粘结剂界面，Scotchbond 2的大多数断裂位于底胶-粘结剂界面，而Mirage Bond的大多数断裂发生在粘结剂内聚区。
