Kashiwada T
Shika Rikogaku Zasshi. 1980 Jan;21(53):1-15.
The retention force of 9 kinds of resins for veneer crown, physical properties and retention force of 7 kinds of opaque resins were determined. Retention force and their physical properties were closely related on resins for veneer crown, that is stronger and more tough resins have larger retention force. The opaque resins containing larger quantity of filler and hydrophilic monomers showed extra-ordinary young's modulus afteter drying. But young's modulus and strength decreased after immersed in water and thermal cycling and the retention force also decreased to the smallest level after immersed in water and thermal cycling. The hydrohobic opaque resins that have good coupling effect to filler showed large retention force even after immersed in water and thermal cycling in spite of large filler content. The opaque resins containing MMA with scanty filler showed large elongation and breaking strength and their retention force were also large after immersed in water and thermal cycling.
测定了9种用于贴面冠的树脂的固位力、7种遮色树脂的物理性能和固位力。用于贴面冠的树脂的固位力与其物理性能密切相关，即更强韧的树脂具有更大的固位力。含有大量填料和亲水性单体的遮色树脂干燥后表现出超常的杨氏模量。但在水浸和热循环后，杨氏模量和强度降低，固位力在水浸和热循环后也降至最低水平。尽管填料含量高，但对填料具有良好偶联效果的疏水性遮色树脂即使在水浸和热循环后仍表现出较大的固位力。含有少量填料的甲基丙烯酸甲酯（MMA）的遮色树脂表现出较大的伸长率和断裂强度，并且在水浸和热循环后它们的固位力也很大。
