Appeldoorn R E, Wilwerding T M, Barkmeier W W
Department of Fixed Prosthodontics, Creighton University School of Dentistry, Omaha, Neb.
J Prosthet Dent. 1993 Jul;70(1):6-11. doi: 10.1016/0022-3913(93)90029-n.
A laboratory study was conducted to evaluate the mean shear bond strength of composite resin bonded to porcelain with the use of eight newer generation repair systems. The range of shear bond strength after 24 hours of water storage was 23.5 +/- 5.3 MPa to 12.0 +/- 2.3 MPa. After 3 months of water storage and thermocycling, the bond strength range was 20.7 +/- 1.7 MPa to 4.2 +/- 1.0 MPa. Three of eight systems evaluated did not exhibit a significant (p > 0.05) decrease in bond strength when the 24-hour bond strengths were compared with the 3-month bond strengths. Most specimens failed cohesively in the porcelain at 24 hours, but at 3 months only four of the eight systems showed consistent failures in the porcelain.
进行了一项实验室研究，以评估使用八种新一代修复系统时复合树脂与瓷粘结的平均剪切粘结强度。储水24小时后的剪切粘结强度范围为23.5±5.3兆帕至12.0±2.3兆帕。储水3个月并进行热循环后，粘结强度范围为20.7±1.7兆帕至4.2±1.0兆帕。在将24小时粘结强度与3个月粘结强度进行比较时，评估的八个系统中有三个系统的粘结强度没有显著降低（p>0.05）。大多数标本在24小时时在瓷中发生内聚破坏，但在3个月时，八个系统中只有四个系统在瓷中表现出一致的破坏。
