Yap A U, Teoh S H, Hastings G W, Lu C S
Department of Restorative Dentistry, Faculty of Dentistry, National University of Singapore.
J Oral Rehabil. 1997 Aug;24(8):574-80. doi: 10.1046/j.1365-2842.1997.00528.x.
The aim of this study was to compare the wear of seven different restorative materials using two different wear simulation modes. This included a non-impact sliding wear test (rotary pin and disc) and an impact-cum-sliding wear test (masticatory simulator). The difference in wear ranking between the two wear tests was compared as well as the correlation of wear to the hardness of the materials. Hardness ranking in the order of decreasing hardness was as follows: Dispersalloy (DA), P50 (P50), Hi-Dense (HD), TPH (TPH), Fuji II LC (FJ), Dyract (DR) and Vitremer (VM). For volumetric wear using the non-impact sliding test, the following ranking in the order of decreasing wear resistance was obtained: DA, TPH, DR, HD, VM, FJ, P50. The results for volumetric wear with impact-cum-sliding wear testing in the order of decreasing wear resistance were: TPH, DR, P50, AR, FJ, VM, HD. Results showed that there is no correlation between hardness and wear resistance. There is also no correlation between impact-cum-sliding wear and non-impact sliding wear. Impact wear should be considered in future two-body wear assessment of materials.
本研究的目的是使用两种不同的磨损模拟模式比较七种不同修复材料的磨损情况。这包括非冲击滑动磨损试验（旋转销盘试验）和冲击-滑动复合磨损试验（咀嚼模拟器试验）。比较了两种磨损试验中磨损排名的差异以及磨损与材料硬度的相关性。硬度从高到低的排序如下：Dispersalloy（DA）、P50（P50）、Hi-Dense（HD）、TPH（TPH）、Fuji II LC（FJ）、Dyract（DR）和Vitremer（VM）。对于使用非冲击滑动试验的体积磨损，按耐磨性从高到低的顺序得到以下排名：DA、TPH、DR、HD、VM、FJ、P50。冲击-滑动复合磨损试验的体积磨损结果按耐磨性从高到低的顺序为：TPH、DR、P50、AR、FJ、VM、HD。结果表明，硬度与耐磨性之间没有相关性。冲击-滑动复合磨损与非冲击滑动磨损之间也没有相关性。在未来材料的两体磨损评估中应考虑冲击磨损。
