复合树脂和未填充修复性树脂的断裂韧性。

Fracture toughness of composite and unfilled restorative resins.

作者信息

Roberts J C, Powers J M, Craig R G

出版信息

J Dent Res. 1977 Jul;56(7):748-53. doi: 10.1177/00220345770560070801.

DOI:10.1177/00220345770560070801

Abstract

Fracture toughness, critical strain energy release rate, and critical stress intensity factor were determined for experimental and commercial restorative resins. A composite resin had lower resistance to crack initiation than an unfilled acrylic resin. The data were consistent with surface failure observed in single-pass wear studies of these resins.

摘要

测定了实验用和市售修复性树脂的断裂韧性、临界应变能释放率和临界应力强度因子。一种复合树脂比未填充的丙烯酸树脂对裂纹萌生的抵抗力更低。这些数据与在这些树脂的单通道磨损研究中观察到的表面失效情况一致。