Beatty M W, Pidaparti R M
Department of Dental Materials, Indiana University School of Dentistry, Indianapolis 46202.
Biomaterials. 1993 Oct;14(13):999-1002. doi: 10.1016/0142-9612(93)90192-5.
Five dental direct filling materials were tested in tension and compression in order to define their stress-strain behaviour for both types of applied stress. In addition, fracture toughness was determined from three-point bending tests. Linear and non-linear stress-strain behaviour was observed, and the response was specific for each material and also to the type of applied stress. Fracture resistance was also found to be material specific, which was related to differences in composition.
对五种牙科直接充填材料进行了拉伸和压缩测试，以确定它们在两种施加应力下的应力-应变行为。此外，通过三点弯曲试验测定了断裂韧性。观察到线性和非线性应力-应变行为，并且每种材料的响应以及对应力类型的响应都是特定的。还发现抗断裂性因材料而异，这与成分差异有关。
