Pilliar R M, Smith D C, Maric B
J Dent Res. 1984 Sep;63(9):1166-72. doi: 10.1177/00220345840630091501.
The wear behavior of 12 commercial restorative composites (conventional and microfilled) and an unfilled restorative material was evaluated using an in vitro wear test referred to as an oscillatory wear test. The effect of varying test conditions was evaluated in a series of preliminary experiments in order to define test conditions for material evaluation. The materials were tested after being aged in water at 37 degrees C for periods of from seven days to one year. The results indicated consistently lower wear rates for the microfilled materials as compared with those of the conventional composites. Aging did not result in significant differences in wear rates measured by this method. Scanning electron micrography of worn surfaces suggested a possible effect of filler particle shape and bonding to the matrix to explain this difference. Although the relevance of the results to clinical behavior is not yet known, the study indicated the importance of material variables on wear.
使用一种称为振荡磨损试验的体外磨损试验，评估了12种市售修复性复合材料（传统型和微填料型）以及一种无填料修复材料的磨损行为。在一系列初步实验中评估了不同试验条件的影响，以便确定用于材料评估的试验条件。将材料在37摄氏度的水中老化7天至1年之后进行测试。结果表明，与传统复合材料相比，微填料材料的磨损率始终较低。通过这种方法测量，老化并未导致磨损率出现显著差异。磨损表面的扫描电子显微镜图像表明，填料颗粒形状以及与基体的结合可能会产生影响，从而解释了这种差异。尽管结果与临床行为的相关性尚不清楚，但该研究表明了材料变量对磨损的重要性。
